{"title":"Solar Observation","description":"Solar Observation","products":[{"product_id":"transport-case-herschel-prism","title":"Transport Case: Herschel prism","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCase for Safty Herschel Prism with space for 5 Filters\u003c\/li\u003e\n\u003cli\u003eSold as a spare, one case comes standard with the HERSCH-P and HERSCH-V\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120766922829,"sku":"HERSCH-CASE","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2452115-37-O-N-1.jpg?v=1750791810"},{"product_id":"solarspectrum-0-7x-telecompressor-2","title":"SolarSpectrum 0.7x Telecompressor 2\"","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eMounted onto the eyepiece side of the SolarSpectrum filter and reduces the telecentric system extended focal length downward by a factor of 0.7\u003c\/li\u003e\n\u003cli\u003eWorking distance: 110mm (Distance to the camera sensor)\u003c\/li\u003e\n\u003cli\u003e2\" external threads on both sides, fitting Universal Flange Adapter #2958240 \u003c\/li\u003e\n\u003cli\u003eTelecompressor is used to adjust the focal length to possibly poor seeing conditions and \/ or enlarging the field for photographic or webcam applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003eBaader Planetarium has designed this new optimized telecentric system for use with Solar Spectrum H-Alpha systems. A telecentric system is used to convert shorter focal ratio telescopes to the desired f\/25 or greater beam needed by the rear mounted Solar Spectrum filter. More than a barlow lens or barlow lens based system, the Baader telecentric ensures that the output beam maintains a consistent normal incident angle across the full filter width. The result is a consistent bandwidth and high image contrast across the field of view. This lens system has been optimized to maintain an exceedingly high optical quality for dedicated solar use (\u0026gt;99% strehl at 656.3nm). Simpler barlow or barlow-based systems are not able to produce this level of accuracy or telecentricity. Hard Dielectric IR coatings further help to reject IR energy and protect the rear etalon from excessive heat energy. \u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003eSolar Spectrum H-alpha filters require parallel light with a ray path of at least f\/30. This is achieved by a focal length with our telecentric systems (and possibly also by dimming the lens with the iris). Because of the focal length extension in many telescopes the sun's full disc us unable to be viewed even when using eyepieces with f = 30 to 35 mm.\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003eBoth Solar Spectrum Telecompressors are mounted eyepiece-sided directly on the filter and reduce the previously extended focal length again by a factor of 0.4x (#2459260) and 0.7x (#2459259) with the result that now the whole solar disk with prominences is visible again.\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003eA telecompressor is slso used to adjust the focal length to possibly poor seeing conditions and \/ or enlarging the field for photographic- or webcam applications.\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003eTo attach the telecompressor use our 2\" Universal flange (# 295 8240); it attaches with four screws directly onto the filter housing (see illustration), the telecompressor is mounted directly into the 2\" thread of the universal flange. The main thread of the compressor also is a 2\" male thread. This can be changed if necessary with parts from our T-2 accessories system either to a T-2 internal or external thread.\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan\u003eTelecentric systems are available in a 2X, 3X, and a 4X version. Please contact us for further specifics and availability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2459259\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825008671\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.105\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/notes_on_safe_use_of_the_baader_d_erf_filter.pdf?v=1586883194\"\u003eNotes on safe use of the Baader D-ERF Filter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solar_spectrum_narrowband_heated_h_alpha_filters.pdf?v=1590568726\"\u003eSolar Spectrum Narrowband heated H-alpha Filters\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120826200141,"sku":"CMPRSR","price":384.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2459259-37-O-N-1.jpg?v=1750791738"},{"product_id":"steplessly-variable-diaphragm-13-113mm","title":"Steplessly variable diaphragm 13- 113mm","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eSteplessly variable, white anodized and heat reflecting diaphragm from 13- to 113 Millimeter for our D-ERF Filters\u003c\/li\u003e\n\u003cli\u003eFor optimum adjustment of a telescope aperture when observing with an H-alpha filter from Solar Spectrum (also suitable for other brands)\u003c\/li\u003e\n\u003cli\u003eThe diaphragm has four telescope-sided M3-threads on a pitch circle radius of 60 mm to fasten also on a DIY-holder.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2459300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825008459\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.267\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120826593357,"sku":"IRIS","price":445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solar-spectrum_irisblende-ohne-fassung-1.jpg?v=1750791738"},{"product_id":"solar-shade-with-drilled-hole-t-2","title":"Solar Shade with T-2 hole","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eA Solar Shade made from Aluminium to clamp between any T-2 connection\u003c\/li\u003e\n\u003cli\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/li\u003e\n\u003cli\u003eUsed to shade the eyepiece or camera viewing opening from direct solar radiation during photographic- or visual solar observation in the H-alpha region with narrowband filters from SolarSpectrum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2959279\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825008558\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.194\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eT-2 (M42)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120868634701,"sku":"SUNSHLD-T2","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2959279-37-O-N-1.jpg?v=1750791680"},{"product_id":"solar-shade-with-drilled-hole-2","title":"Solar Shade with 2\" hole","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eA Solar Shade made from Aluminium to clamp between any 2\" connection\u003c\/li\u003e\n\u003cli\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/li\u003e\n\u003cli\u003eUsed to shade the eyepiece or camera viewing opening from direct solar radiation during photographic- or visual solar observation in the H-alpha region with narrowband filters from SolarSpectrum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2959280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825022325\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.196\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2\" (50,8 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120868667469,"sku":"SUNSHLD-2","price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2959280-37-O-N-1.jpg?v=1750791679"},{"product_id":"solar-shade-with-drilled-hole-m68","title":"Solar Shade with M68 hole","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eA Solar Shade made from Aluminium to clamp between any M68 connection\u003c\/li\u003e\n\u003cli\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/li\u003e\n\u003cli\u003eUsed to shade the eyepiece or camera viewing opening from direct solar radiation during photographic- or visual solar observation in the H-alpha region with narrowband filters from SolarSpectrum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2959281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825022332\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.219\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eUse as shade (glare protection) for visual observation \/ imaging through eyepiece or camera\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eM68 (68mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32120869847117,"sku":"SUNSHLD-M68","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2959281-37-O-N-1.jpg?v=1750791678"},{"product_id":"baader-double-polarizing-filter","title":"Baader Double Polarizing Filter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch4\u003eBaader Double Polarizing Filter\u003c\/h4\u003e\n\u003cp\u003eScrews into 1.25\" or 2\" eyepieces\/threads. The two filters can be rotated relative to each other to variably adjust the brightness level for lunar observations. The Baader Double Polarizing Filter can also be used for solar observations in combination with an objective sun filter made from Astro Solar Film.\u003c\/p\u003e\n\u003cp\u003eThe double polarizing filters in 1.25\" or 2\" can not be separated into two parts, so you can't take one half as a single filter e.g. for a Herschel wedge. The reason for this is stability and quality: If both housings could be separated, they may move or be tilted to each other, which could harm the image quality and cause reflections.\u003c\/p\u003e\n\u003cdiv class=\"important-note\"\u003e\n\u003ch4\u003eImportant Information for Observing the Sun\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003ePolarizer and neutral density filters need additional filtering ahead of the scope or eyepiece for any observing of the sun (for example, Baader Herschel Prism or Baader Astro Solar Safety Film). Using without the appropriate safe solar filters can cause permanent damage to the these filters and eyesight.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2408340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825012463\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.042\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edouble polarizing filter for stepless brightness adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar, Specialty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDouble mounted (LPFC 6mm)- total height 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density, Polarizing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e2\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2408344\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825022714\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.078\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edouble polarizing filter for stepless brightness adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar, Specialty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDouble mounted (LPFC 6mm)- total height 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density, Polarizing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch6\u003e\u003c\/h6\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch","offer_id":32120915918925,"sku":"FPOL-1D","price":109.0,"currency_code":"USD","in_stock":true},{"title":"2 inch","offer_id":32120915951693,"sku":"FPOL-2D","price":154.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/polar-double.jpg?v=1750791640"},{"product_id":"baader-single-polarizing-filter","title":"Baader Single Polarizing Filter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch4\u003eBaader Polarizing Filter\u003c\/h4\u003e\n\u003cp\u003eScrews into 1.25\" or 2\" eyepieces\/threads. Useful in Lunar and Solar observations to limit brightness and increase contrast.\u003c\/p\u003e\n\u003cp\u003eThe filter can also be used with a Baader Hershel Wedge to provide an adjustable variable brightness. Positioned between the Baader Hershel Wedge and Eyepiece the filter\/eyepiece combination can then be rotated to adjust brightness.\u003c\/p\u003e\n\u003cdiv class=\"important-note\"\u003e\n\u003ch4\u003eImportant Information for Observing the Sun\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003ePolarizer and neutral density filters need additional filtering ahead of the scope or eyepiece for any observing of the sun (for example, Baader Herschel Prism or Baader Astro Solar Safety Film). Using without the appropriate safe solar filters can cause permanent damage to the these filters and eyesight.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2408343\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825012449\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar, Specialty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDouble mounted (LPFC 6mm)- total height 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density, Polarizing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e2\"\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2408342\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825012456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar, Specialty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDouble mounted (LPFC 6mm)- total height 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density, Polarizing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003c\/h6\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Baader Planetarium","offers":[{"title":"2 inch","offer_id":32120916901965,"sku":"FPOL-2","price":93.0,"currency_code":"USD","in_stock":true},{"title":"1 25 inch","offer_id":32120916934733,"sku":"FPOL-1","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/polar-single.jpg?v=1750791638"},{"product_id":"baader-d-erf-energy-rejection-filter-75-180mm","title":"Baader D-ERF Energy Rejection Filter (75- 180mm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eD-ERF (Dielectric Energy Reflection Filter) in different sizes\u003c\/li\u003e\n\u003cli\u003ePre-filter to reduce heat during H-alpha observation with SolarSpectrum Filters\u003c\/li\u003e\n\u003cli\u003ePlane parrallel plate (without filter cell) with IR-Cut dielectric coating\u003c\/li\u003e\n\u003cli\u003enon-ageing sealed coating edges\u003c\/li\u003e\n\u003cli\u003eHalf-Band-Width (HBW): 80 mm- see also graph\u003c\/li\u003e\n\u003cli\u003eFilter WITHOUT cell spun aluminum customized for your telescope can be ordered in addition (not available as standalone product)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR rejection coating that eliminates the heating from IR energy to produce a truly cold focus (hence, \"Cool ERF\"). As a result, the telescope and etalon remain cool and safe from excessive heating. The result is longer filter life, and freedom from tube currents caused by heating. Users with compound telescopes (SCTs, Cassegrains, Maks) will really appreciate the D-ERF, due to its reduced heat load on the mirrors and the reduction in tube currents caused by internal heating.\u003c\/p\u003e\n\u003cp\u003eUnlike every other ERF produced up until now, the Baader D-ERF are produced from a high quality optical clear glass, ensuring freedom from the internal impurities that caused so much headache in producing the older red-glass ERFs. The red glass used in producing the older generation of ERFs is of very poor and variable internal quality. In order to produce ERFs from red glass, Baader had to complete and polish each ERF, then interferometrically inspect every one for internal defects, resulting in having to dispose of far more ERFs than they were able to keep. Its no wonder why other red glass ERFs have such a poor reputation, particularly in sizes over 3\" in aperture.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003eD-ERF filters use a high grade BK7 optical glass which is free of any internal defects. The thick substrates are polished plane-parallel, smooth, and flat to 1\/10 wave p-v over the entire surface. Only by using thick substrates can a high surface accuracy be achieved and held in use (for example, the 90mm ERF is 5.5mm thick. Thinner substrates are not capable of holding such high surface accuracy).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe energy rejection is now accomplished using ultra-hard dielectric coatings on both sides of the glass substrate, and also serve to protect the glass, making it highly resistant to scratches. T\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003ehe 43-layer dielectric DWDM-coating delivers a COOL-beam of pure red light, with a HBW of 80 nm! This reflects all the unwanted spectrum from 280 nm up to 1500 nm, while leaving open just an 80nm-wide spectral window around H-alpha. It is hellishly difficult to design such a performance coating, as well as the counter-side anti-reflection multicoating, in such a way that no coating-induced stress builds up inside the glass substrate. If these coatings systems on either side of the plate are not done exactly right, to cancel out the stresses induced by the coating layers, the plane-parallel surfaces may easily be distorted, meaning the 1\/10 wave flat plate deforms into an irregular curved substrate that acts as a (bad) lens. Baader's D-ERF filter-layers are designed with the utmost care, applied with the world€˜s most advanced optical coating machines, and the final filters are all inspected and passed in autocollimation on our Carl Zeiss optical bench.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eD-ERF filters are sold un-mounted and are available in the following diameters: 70mm, 90mm, 110mm, 135mm, 160mm, 180mm. Please contact us for further specifics and availability.\u003c\/p\u003e\n\u003cp\u003eCustom spun-Aluminum filter cells are also available to fit any telescope, on special order. Please contact us for pricing and availability.\u003c\/p\u003e\n\u003ch4 style=\"box-sizing: border-box; margin: 0px 0px 0.75em; padding: 0px; font-size: 1.2em; font-weight: bold; color: #636363; font-family: 'Open Sans', sans-serif; font-style: normal; line-height: 1.4; text-rendering: optimizespeed; text-transform: uppercase; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px;-webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003c\/h4\u003e\n\u003ch4 style=\"box-sizing: border-box; margin: 0px 0px 0.75em; padding: 0px; font-size: 1.2em; font-weight: bold; color: #636363; font-family: 'Open Sans', sans-serif; font-style: normal; line-height: 1.4; text-rendering: optimizespeed; text-transform: uppercase; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px;-webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"\u003eIMPORTANT NOTE:\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000; font-family: 'Open Sans', sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;-webkit-text-stroke-width: 0px; background-color: #ffcccc; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003eBaader D-ERF Energy Rejection filters are intended for use only as a Pre-Filter for Solar Spectrum H-Alpha filters. The D-ERF filter must always be present and mounted ahead of the telescope objective. The filter should be oriented with the primary coated face towards the sun (an arrow mark on the rim of the filter points toward this side). The D-ERF filter must be used together with the Solar Spectrum H-Alpha filter. Irreparable eye damage will\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTransmission Curve\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/DERF_Curve_Lg_1.jpg?v=1590514996\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch6\u003e\u003c\/h6\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e75mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459241D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825021250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.073\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e6,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 75 mm ± 0,05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e90mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459242D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825021267\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.136\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 89,9 mm ± 0,05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e110mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459243D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825021274\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.205\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e8,1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 109,9 mm ± 0,05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e135mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459244D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825021281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.349\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e9,1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 134,9 mm ± 0,05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e135 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e160mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459245D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825021298\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.609\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e9,9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 159,6 mm ± 0,05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e180mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459246D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825020826\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.86\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e610- 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e12,5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e650 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSpecial Size: ؘ 179,9 mm ± 0,05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eIR-Cut, Solar, Specialty, UV-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eEnergy rejection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_d_erf_dielectric_energy_rejection_filters.pdf?v=1586883185\"\u003eBaader D-ERF- Dielectric Energy Rejection Filters\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/notes_on_safe_use_of_the_baader_d_erf_filter.pdf?v=1586883194\"\u003eNotes on safe use of the Baader D-ERF Filter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"75 mm","offer_id":32120950128717,"sku":"DERF-75","price":496.0,"currency_code":"USD","in_stock":true},{"title":"90 mm","offer_id":32120950161485,"sku":"DERF-90","price":713.0,"currency_code":"USD","in_stock":true},{"title":"110 mm","offer_id":32120950227021,"sku":"DERF-110","price":893.0,"currency_code":"USD","in_stock":true},{"title":"135 mm","offer_id":32120950292557,"sku":"DERF-135","price":1407.0,"currency_code":"USD","in_stock":true},{"title":"160 mm","offer_id":32120950358093,"sku":"DERF-160","price":1753.0,"currency_code":"USD","in_stock":true},{"title":"180 mm","offer_id":32120950423629,"sku":"DERF-180","price":2559.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solar-spectrum-derf-filter-und-fassungen-lr-ohne-blaustich_3.jpg?v=1750791599"},{"product_id":"baader-neutral-density-filter-nd-0-6-0-9-1-8-3-0","title":"Baader Neutral Density Filter (ND 0,6 \/ 0,9 \/ 1,8 \/ 3,0)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cdiv class=\"important-note\"\u003e\n\u003cul\u003e\n\u003cli\u003eFor reducing brightness and during Lunar and Solar observation. Suitable for solar observing only as an additional post-filter!\u003c\/li\u003e\n\u003cli\u003eFine optical polish results in no loss of sharpness at high magnifications even with a filter position far in front of the focal point.\u003c\/li\u003e\n\u003cli\u003ePhantom Group coated. No ghosting, reflections or stray light.\u003c\/li\u003e\n\u003cli\u003eThreaded both sides of the glass allows combination with other filters (e.g. Baader Color Filters).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Information for Observing the Sun\u003c\/h3\u003e\n\u003cp\u003ePolarizer and neutral density filters need additional filtering ahead of the scope or eyepiece for any observing of the sun (for example, Baader Herschel Prism or Baader Astro Solar Safety Film). Using without the appropriate safe solar filters can cause permanent damage to the these filters and eyesight.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.6=2458343 | 0.9=2458344 | 1.8=2458345 | 3.0=2458346\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825009593\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.059\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eNEUTRAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eND 0.6 | 0.9 | 1.8 | 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eDAMPING FACTOR\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e2\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.6=2458321 | 0.9=2458322 | 1.8=2458331 | 3.0=2458332\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825009654\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.066\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eNEUTRAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eND 0.6 | 0.9 | 1.8 | 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003efull Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eDAMPING FACTOR\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLunar, Planetary, Solar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eNeutral Density\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch \/ ND 0.6","offer_id":32120952913997,"sku":"FND0-1","price":55.0,"currency_code":"USD","in_stock":true},{"title":"1 25 inch \/ ND 0.9","offer_id":32120952946765,"sku":"FND1-1","price":55.0,"currency_code":"USD","in_stock":true},{"title":"1 25 inch \/ ND 1.8","offer_id":32120952979533,"sku":"FND2-1","price":55.0,"currency_code":"USD","in_stock":true},{"title":"1 25 inch \/ ND 3.0","offer_id":32120953012301,"sku":"FND3-1","price":55.0,"currency_code":"USD","in_stock":true},{"title":"2 inch \/ ND 0.6","offer_id":32120953045069,"sku":"FND0-2","price":95.0,"currency_code":"USD","in_stock":true},{"title":"2 inch \/ ND 0.9","offer_id":32120953077837,"sku":"FND1-2","price":95.0,"currency_code":"USD","in_stock":true},{"title":"2 inch \/ ND 1.8","offer_id":32120953110605,"sku":"FND2-2","price":95.0,"currency_code":"USD","in_stock":true},{"title":"2 inch \/ ND 3.0","offer_id":32120953143373,"sku":"FND3-2","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/all-nd-filter.jpg?v=1750791597"},{"product_id":"solar-viewer-astrosolar®-silver-gold-1pc-10pc-25pc-100pc","title":"Solar Viewer AstroSolar® Silver\/Gold (10pc, 25pc, 100pc)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eUnfortunately, due to heavy demand we have sold out of all Baader Silver\/Gold Eclipse Glasses. We recommend you contact one of our authorized Baader dealers (see\u003c\/span\u003e \u003ca href=\"https:\/\/alpineastro.com\/pages\/dealers\"\u003ehttps:\/\/alpineastro.com\/pages\/dealers\u003c\/a\u003e). \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eThe following authorized US Baader Dealers had some remaining inventory recently, so they may still be able to help you. Several of them also sell on Amazon, so may be able to be fulfilled quickly while their stock lasts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eAgena Astro Products\u003c\/span\u003e (\u003ca href=\"http:\/\/www.agenaastro.com\"\u003ewww.agenaastro.com\u003c\/a\u003e)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eAgena Amazon Listing:\u003c\/span\u003e \u003ca href=\"https:\/\/www.amazon.com\/Baader-AstroSolar-Eclipse-Glasses-2459294\/dp\/B0CSTGCYTG\/ref=sr_1_2?dib=eyJ2IjoiMSJ9.Nbak48jnIcRHgabw-m59ujbtoxTBx-qGwoIbdeilYNWKd-3Vzum82XIVIWUwVHmpidubhi7Dc3CEtcurjdfqVavaixsVnayrr8X9dib6f-BX32PyxWjjZDs19K4AAOsLOjwOCkHAof9F02dPd7IbA8QdbOyJDrXnsGeAQl7GTNOM7I7EzvIJVH7qxlGnSdhQnRYjou3_8l62mYQiOwHUCD15c9fDHLI7nGu4uQiU2r0.mBrdgzBZdLCzb1gUSOJeSXRqQVehtMCYArzqf54UOqI\u0026amp;dib_tag=se\u0026amp;keywords=baader%2Bsolar\u0026amp;qid=1712077183\u0026amp;sr=8-2\u0026amp;th=1\" data-mce-fragment=\"1\"\u003ehttps:\/\/www.amazon.com\/Baader-AstroSolar-Eclipse-Glasses-2459294\/dp\/B0CSTGCYTG\/ref=sr_1_2?dib=eyJ2IjoiMSJ9.Nbak48jnIcRHgabw-m59ujbtoxTBx-qGwoIbdeilYNWKd-3Vzum82XIVIWUwVHmpidubhi7Dc3CEtcurjdfqVavaixsVnayrr8X9dib6f-BX32PyxWjjZDs19K4AAOsLOjwOCkHAof9F02dPd7IbA8QdbOyJDrXnsGeAQl7GTNOM7I7EzvIJVH7qxlGnSdhQnRYjou3_8l62mYQiOwHUCD15c9fDHLI7nGu4uQiU2r0.mBrdgzBZdLCzb1gUSOJeSXRqQVehtMCYArzqf54UOqI\u0026amp;dib_tag=se\u0026amp;keywords=baader%2Bsolar\u0026amp;qid=1712077183\u0026amp;sr=8-2\u0026amp;th=1\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eHigh Point Scientific\u003c\/span\u003e (\u003ca href=\"http:\/\/www.highpointscientific.com\"\u003ewww.highpointscientific.com\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eWoodland Hills Camera \u0026amp; Telescopes\u003c\/span\u003e (\u003ca href=\"http:\/\/www.telescopes.net\"\u003ewww.telescopes.net\u003c\/a\u003e)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eWoodland Amazon Listing: \u003c\/span\u003e \u003ca href=\"https:\/\/www.amazon.com\/Baader-AstroSolar-Eclipse-Glasses-2459294\/dp\/B073VH7Y4L\/ref=sr_1_1?dib=eyJ2IjoiMSJ9.71445iNk5_R9Lfsgng3kVg.CaJD_D8n4hHS1AttYgkZoVXNcdcJV5lNZYRfoOv_X98\u0026amp;dib_tag=se\u0026amp;keywords=baader%2Bsolar\u0026amp;m=A3LTL8KVF3JJKW\u0026amp;qid=1712075292\u0026amp;s=merchant-items\u0026amp;sr=1-1\u0026amp;th=1\"\u003ehttps:\/\/www.amazon.com\/Baader-AstroSolar-Eclipse-Glasses-2459294\/dp\/B073VH7Y4L\/ref=sr_1_1?dib=eyJ2IjoiMSJ9.71445iNk5_R9Lfsgng3kVg.CaJD_D8n4hHS1AttYgkZoVXNcdcJV5lNZYRfoOv_X98\u0026amp;dib_tag=se\u0026amp;keywords=baader%2Bsolar\u0026amp;m=A3LTL8KVF3JJKW\u0026amp;qid=1712075292\u0026amp;s=merchant-items\u0026amp;sr=1-1\u0026amp;th=1\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBaader's Renowned Solar Viewer Silver\/Gold eclipse viewers provide a premium and safe affordable way to view the sun. Proven and trusted around the world for over 30years. Baader and Alpine Astronomical are among the few reputable suppliers of eclipse viewers recommended by \u003ca title=\"NASA Solar Eclipse Safety\" href=\"https:\/\/solarsystem.nasa.gov\/eclipses\/safety\/\" target=\"_blank\"\u003eNASA\u003c\/a\u003e and the\u003ca href=\"https:\/\/eclipse.aas.org\/resources\/solar-filters\" title=\"American Astronomical Society Reputable Vendors of Solar Filters\" target=\"_blank\"\u003e American Astronomical Society\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAvailable in 10pc, 25pc, and 100pc quantities. For smaller qty sales, please contact one of our \u003ca href=\"https:\/\/alpineastro.com\/pages\/dealers\" title=\"Alpine Astronomical Authorized Dealers\" target=\"_blank\"\u003eAuthorized Dealers\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eBaader's latest viewers offer the following benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNEW- No Reflections: the anti-reflective, UV-absorbing €œGold€Film on the inside of Baader€™sAstroSolar® Viewers guarantees a most comfortable viewing experience (none of the 'warming' that can be felt with some black PET film viewers)\u003c\/li\u003e\n\u003cli\u003eMade in Germany: Baader Solar Viewer AstroSolar® Silver\/Gold are entirely produced in Germany under direct supervision of Baader Planetarium. These are high quality glasses using time tested expensive materials, processes, and stringent quality controls.\u003c\/li\u003e\n\u003cli\u003eSafety: Baader Solar Viewer AstroSolar® Silver\/Gold meets and largely exceeds the latest EN ISO 12312-2:2015 standard for eclipse viewers. Just as importantly- Each and Every Viewer is tested to ensure its safety. \u003cem\u003eDon€™t entrust your eyes to anything less.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eCrystal Clear and Tack Sharp: Many low cost viewers may supply softer hazy views. Baader€™s Solar Viewer AstroSolar® Silver\/ Gold deliver the same crystal clear views as their renowned Astro Solar® film used for over 30 years by professionals and amateurs for high magnification telescopic observation.\u003c\/li\u003e\n\u003cli\u003eTrue Color Views: No other viewer presents the sun as close to its real color- WHITE! All of the other viewers claim to produce a €˜pleasing€™ or €˜Natural€™ yellow or orange colored sun (not because that is desirable, but because all simple smoked plastic viewers color the image to look reddish). Nothing could be more un-natural for the overhead sun. Our Sun is White and Baader€™sAstroSolar® Viewers are the only way to see it this way with your eyes.\u003c\/li\u003e\n\u003cli\u003eFour languages in one: Solar Viewer AstroSolar® Silver\/Gold may be lawfully sold across the USA as well as in Mexico and Canada as they carry safety instructions in English, French and Spanish language. The fourth language- German- is just a reminiscent of their origin.\u003c\/li\u003e\n\u003cli\u003eStory: each Solar Viewer AstroSolar® Silver\/Gold printing artwork explains in vivid images what actually happens during an eclipse\u003c\/li\u003e\n\u003cli\u003eSafe storage: each viewer packed individually in protective poly-bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1 pc\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459294\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825028693\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar® Silver\/Gold Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 3,7 x 2,8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003cbr\u003e\u003c\/h6\u003e\n\u003ch2\u003e100x Solar Viewer in counter display\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459297\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825028730\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.616\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar® Silver\/Gold Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 3,7 x 2,8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_can_i_observe_the_eclipse_in_full_safety_without_buying_any_commercial_product.pdf?v=1590503647\"\u003eHow can I observe the eclipse in full safety without buying any commercial product?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instructions_to_use_astrosolar_film.pdf?v=1590503647\"\u003eInstructions to use AstroSolar Film\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_photo_solar_filter_for_cameras_and_telescopes.pdf?v=1590503649\"\u003eHow to make your own PHOTO solar filter for cameras and telescopes\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_astrosolar_photo_film.pdf?v=1590503653\"\u003eTestreview AstroSolar Photo Film\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"10 pc","offer_id":32120957009997,"sku":"GLASSES-10","price":44.0,"currency_code":"USD","in_stock":true},{"title":"25 pc","offer_id":43757198639340,"sku":"GLASSES-25","price":97.0,"currency_code":"USD","in_stock":true},{"title":"100x Solar Viewer in counter display","offer_id":32120956977229,"sku":"GLASSES-100","price":380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2459294_1pc-solar-viewer-astrosolar-silver-gold_front-back.jpg?v=1750791594"},{"product_id":"astrosolar®-safety-film-od-5-0-eco-size-20x29-100x50-117x117-cm","title":"AstroSolar® Safety Film OD 5.0 (ECO-size, 20x29, 100x50, 117x117 cm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch2\u003eGet ready for the Eclipse!\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/alpineastro.com\/blogs\/news\/making-an-inexpensive-filter-cell-using-baader-astrosolar-film\" data-mce-href=\"https:\/\/alpineastro.com\/blogs\/news\/making-an-inexpensive-filter-cell-using-baader-astrosolar-film\"\u003eMaking an inexpensive filter cell using Baader AstroSolar Film\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eSafety Film 5.0 for solar observation and photography at high magnification, telescope quality, Optical Density (OD) = 5.0\u003c\/li\u003e\n\u003cli\u003eSafe for visual solar observation (with additional optics) and imaging\u003c\/li\u003e\n\u003cli\u003eThis highest precision film consistently produces strehl ratios of 94 to 96 percent at interferometric tests- thus it performs optically like a Fluorite Triplet Lens by Carl Zeiss or Astro Physics\u003c\/li\u003e\n\u003cli\u003eAstroSolar Safety Film is best suited for precision work with all astronomical telescopes and binoculars- just as well as for all photographic camera- and tele-lenses\u003c\/li\u003e\n\u003cli\u003eFor more than 25 years on the market, the only film-material made to not deteriorate the optical wavefront, it does allow to attain high magnification with any long-range optics without reducing sharpness or contrast of the solar surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe patented Baader AstroSolar® Safety Film 5.0 is produced for visual and photographic solar observation at high magnification (with additional optics). AstroSolar® Safety Film is best suited for precision work with all astronomical telescopes and binoculars- just as well as for all photographic camera- and tele-lenses (Patent pending in all European States- voted for \"Astro-Product of the Decade\" in the USA, and Sky and Telescope's Sept 2000 Review \"A New Standard in Solar Filters\") Baader Planetarium's AstroSolar®Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or material. The views through AstroSolar display fine solar details, including fine penumbral detail, solar granulation, and lighter colored faculae. The disk is set against a dark background, free of the haze and scatter that is common in typical 'mylar' films or inexpensive glass filters. The performance of AstroSolar is even more remarkable when considering its very low cost- only $36 for telescopes up to 8\". We even have sizes large enough for producing full-aperture filters for very large telescopes (see the huge 40\" filter as shown above!). When combined with Baader's tips for a simple do-it-yourself filter mount, anyone can construct a complete low cost- High Quality- white light solar filter for any telescope.\u003c\/p\u003e\n\u003cp\u003eIt is possible to further improve the stability and sharpness of the solar image through the use of the Baader Solar Continuum Filter. Views of granulation and faculae are particularly enhanced through the use of this filter, in combination with AstroSolar®. Users of achromatic refractors will be particularly pleased with the performance using this additional filter.\u003c\/p\u003e\n\u003cp\u003eNEW- AstroSolar® Eco size. This smaller 140x155mm size is ideal for smaller refractors (\u0026lt;4.5\"), Camera Lenses, Spotting Scopes and Binoculars. Included is a DIY cell that enables you to create a functional hi-resolution filter with simple materials.\u003c\/p\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e-\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e(link to Safety Information)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan size=\"4\" color=\"#006699\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eOptical Quality\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eFor a full interferometric report on the optical quality of AstroSolar\u003cspan\u003e®\u003c\/span\u003e, please click on the image below:\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"\/pages\/laser-interferometric-report-for-baader-turbo-film%E2%84%A2-and-astrosolar%E2%84%A2\" target=\"_blank\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/tmb_abb_1a_480x480.jpg?v=1586362610\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003ca href=\"\/pages\/laser-interferometric-report-for-baader-turbo-film%E2%84%A2-and-astrosolar%E2%84%A2\" target=\"_blank\"\u003eAstroSolar and TurboFilm Interferometric Report\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThis highest precision film consistently produces strehl ratios of 94 to 96 percent in interferometric tests- thus it performs optically as well as a high quality Fluorite Triplet Lens by Carl Zeiss (per interferometric test results). Baader even had a hard time themselves seeing any difference in performance between AstroSolarTM and 1\/20 wave precision optical windows which they stocked from Zeiss. Their stock of precision polished plates runs into tens of thousands of $- all stocked for the 1999 eclipse- but AstroSolarTM was so good in fact, that these plates were hard to sell. Baader AstroSolar Safety Film shows notably more sharpness and contrast than any competitive objective filter we know of, especially including the affordable Glass Objective Filters and other commonly available Mylar filters. We have found that only our own superb Baader Herschel Safety Wedge is able to noticeably exceed the performance of AstroSolar.\u003c\/p\u003e\n\u003cp\u003eWhat is even more important- with AstroSolar®the Sun appears in it' s real color- neutral white (with only a slight bluish tinge). Other films and glass filters produce a blurry bluish or reddish\/orange\/yellow Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.\u003c\/p\u003e\n\u003cp\u003eDue to it's neutral color balance, AstroSolar® enables the use of various color (or interference) filters which allows the observer to concentrate on certain spectral passbands for investigations of different layers within the solar \"atmosphere\".\u003c\/p\u003e\n\u003ch4\u003eEye safety:\u003c\/h4\u003e\n\u003cp\u003eAstroSolar® is essentially free from pinholes, since- unlike even the most expensive glass filters- it is coated on both sides, so that the chance of two pinholes overlapping each other is extremely faint. Pinholes do appear, but to 1 out of 10000 only, in optical density 2.5!\u003c\/p\u003e\n\u003cp\u003eImportant note: The eye safety norm EN ISO 12312-2:2015 for naked eye solar viewers does not apply to front aperture filters covering long-range optics. AstroSolar Safety Film 5.0 should not be used for naked eye solar observation or production of solar viewers. For direct solar viewing without telescope, binocular or camera optics, inquire for our EN ISO 12312-2:2015-11 certified Baader Solar Viewers equipped with AstroSolar® Silver\/Gold Film.\u003c\/p\u003e\n\u003ch4\u003eHistory and goal of AstroSolarTM:\u003c\/h4\u003e\n\u003cp\u003eBaader Planetarium delivered solar safety film for 19 million eclipse viewers that were used throughout Europe for the August 11 Eclipse. Not one user of their films suffered from eye damage. Baader has produced solar safety films for over 17 years and has reason to claim a high degree of competence for all aspects of solar observation. With Baader AstroSolarTM we are set out to show you the Sun' s hidden grandeur at a fraction of the cost for comparable equipment. Real professional solar work has typically been restricted to a few die hard amateurs who would put up the $1000,- or more for a real precision 1\/20 wave glass filter. Now you can get an equally precise AstroSolarTM filter to fit an 8\" aperture for $36 (or much less even, if a whole group of people share a larger roll of film). No longer will solar observation be a \"ho hum\" experience, where you look into your telescope through an \"economy priced\" glass or mylar filter and wonder what this kind of amateur activity is all about. Many of our customers have pushed out the glass or mylar from their older filters only to use their filter cell for AstroSolarTM- and experience a completely new, crisp, and incredibly esthetic sun. All of a sudden, the telescope has the same performance during the day that it has at night, and now they realize that the consistently 'poor seeing' at their site was really just a consistently poor solar filter.. We are always amazed how easily some amateurs accept mediocre sharpness during observation of our nearest star, while they can be extremely critical if their telescope does not perform perfect on other stars (or planets).\u003c\/p\u003e\n\u003ch4\u003eProduction secrets \/ products:\u003c\/h4\u003e\n\u003cp\u003eThe development of AstroSolar® was only possible due to the incredible demand during the 1999 eclipse. Dozens of miles of film were destroyed during tests to produce the tooling and process techniques to produce an absolutely uniform molecular structure for the substrate. Not to speak of the related treatments, annealing and dual side coating that the film undergoes until it has attained the desired properties. As a result of this material breakthrough, Baader is able to offer two film products which do not at all distort the performance of your telescope;\u003cbr\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eAstroSolar® for solar observation and photography,\u003c\/li\u003e\n\u003cli\u003eTurboFilmTM, an optically clear precision film for night time protection of your valuable optical equipment; to shield it against dirt, scratches, coating defects, humidity inside open tubes and on mirror surfaces- and last not least, to stop air currents (tube-seeing).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003ePlease Note: Before mounting the AstroSolar, be sure to peel off the removable clear protective film that is present on one side of the film.\u003c\/p\u003e\n\u003cp\u003eFor construction of a simple do-it-yourself cell for AstroSolar®, please click on this link: \u003ca href=\"\/pages\/astrosolar%C2%AE-do-it-yourself-filter-mount\" target=\"_blank\"\u003esimple do-it-yourself filter mount\u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003eECO-size: ca. 140x155 mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459286\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 140 x 155 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eA4-size: ca. 20 x 29 cm (8\" x 12\")\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825008534\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 20 x 29 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100 x 50 cm (40\" x 20\")\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459282\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825008527\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.046\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 100 x 50 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eGiant size: 117 x 117cm (46\" x 46\")\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459284\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825008503\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 117 x 117 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\n\u003cbr\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_can_i_observe_the_eclipse_in_full_safety_without_buying_any_commercial_product.pdf?v=1590503647\"\u003eHow can I observe the eclipse in full safety without buying any commercial product?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instructions_to_use_astrosolar_film.pdf?v=1590503647\"\u003eInstructions to use AstroSolar Film\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_solar_filter_for_cameras_binoculars_and_telescope_8a6e05c5-5004-4706-bc7a-4bf42e0d0deb.pdf?v=1707055867\"\u003eHow to make your own PHOTO solar filter for cameras and telescopes\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_astrosolar_photo_film.pdf?v=1590503653\"\u003eTestreview AstroSolar Photo Film\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"ECO-size: ca. 140x155 mm","offer_id":32120975163469,"sku":"ASOLV-E","price":27.0,"currency_code":"USD","in_stock":true},{"title":"A4-size: ca. 20 x 29 cm (8\" x 12\")","offer_id":32120975196237,"sku":"ASOLV-S","price":44.0,"currency_code":"USD","in_stock":true},{"title":"100 x 50 cm (40\" x 20\")","offer_id":32120975229005,"sku":"ASOLV-M","price":111.0,"currency_code":"USD","in_stock":false},{"title":"Giant size: 117 x 117cm (46\" x 46\")","offer_id":32120975261773,"sku":"ASOLV-L","price":391.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/astrosolar-config-de.jpg?v=1750791583"},{"product_id":"astrosolar-photo-film-od-3-8","title":"AstroSolar Photo Film OD 3.8","description":"\u003ch6\u003eDescription\u003cbr\u003e\n\u003c\/h6\u003e\n\u003ch2\u003eGet ready for the Eclipse!\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/alpineastro.com\/blogs\/news\/making-an-inexpensive-filter-cell-using-baader-astrosolar-film\" data-mce-href=\"https:\/\/alpineastro.com\/blogs\/news\/making-an-inexpensive-filter-cell-using-baader-astrosolar-film\"\u003eMaking an inexpensive filter cell using Baader AstroSolar Film\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAstroSolar Photo Film (\u003cstrong\u003e\u003cem\u003eimaging only\u003c\/em\u003e\u003c\/strong\u003e), telescope quality, Optical Density OD = 3.8\u003c\/li\u003e\n\u003cli\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/li\u003e\n\u003cli\u003eThis highest precision film consistently produces strehl ratios of 94 to 96 percent at interferometric tests- thus it performs optically like a Fluorite Triplet Lens by Carl Zeiss or Astro Physics\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\" data-mce-style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003eDANGER: Not suitable for visual observation- eye injury will result from any visual use, including viewing through the optical viewfinder on a DSLR\u003c\/span\u003e\u003cspan style=\"background-color: transparent;\" data-mce-style=\"background-color: transparent;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e.\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAstroSolar Photo Film OD 3.8 is only intended to be used by well-experienced Astro-imagers. This material is not intended to serve for protection during visual solar observation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBaader AstroSolarTM Safety Film (Patent pending in all European States- voted for \"Astro-Product of the Decade\" in the USA, and Sky and Telescope's Sept 2000 Review \"A New Standard in Solar Filters\") Baader Planetarium's AstroSolarTM Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or material. The views through AstroSolar display fine solar details, including fine penumbral detail, solar granulation, and lighter colored faculae. The disk is set against a dark background, free of the haze and scatter that is common in typical metallized 'mylar', smoked films, or inexpensive glass filters.\u003c\/p\u003e\n\u003cp\u003eIt is possible to further improve the stability and sharpness of the solar image through the use of the Baader Solar Continuum Filter. Views of granulation and faculae are particularly enhanced through the use of this filter, in combination with AstroSolar. Users of achromatic refractors will be particularly pleased with the performance using this additional filter.\u003c\/p\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e- \u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e \u003c\/strong\u003e(link to Safety Information)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan color=\"#006699\" size=\"4\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch6\u003eOptical Quality\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eFor a full interferometric report on the optical quality of AstroSolar®, please click on the image below:\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003ca href=\"\/pages\/laser-interferometric-report-for-baader-turbo-film%E2%84%A2-and-astrosolar%E2%84%A2\" target=\"_blank\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/tmb_abb_1a_480x480.jpg?v=1586362610\" data-mce-style=\"float: none;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003ca href=\"\/pages\/laser-interferometric-report-for-baader-turbo-film%E2%84%A2-and-astrosolar%E2%84%A2\" target=\"_blank\"\u003eAstroSolar and TurboFilm Interferometric Report\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis highest precision film consistently produces strehl ratios of 94 to 96 percent in interferometric tests- thus it performs optically as well as a high quality Fluorite Triplet Lens by Carl Zeiss (per interferometric test results). Baader even had a hard time themselves seeing any difference in performance between AstroSolarTM and 1\/20 wave precision optical windows which they stocked from Zeiss. Their stock of precision polished plates runs into tens of thousands of $- all stocked for the 1999 eclipse- but AstroSolarTM was so good in fact, that these plates were hard to sell. Baader AstroSolar Safety Film shows notably more sharpness and contrast than any competitive objective filter we know of, especially including the affordable Glass Objective Filters and other commonly available Mylar filters. We have found that only our own superb Baader Herschel Safety Wedge is able to noticeably exceed the performance of AstroSolar.\u003c\/p\u003e\n\u003cp\u003eAstroSolarTM is essentially free from pinholes, since- unlike even the most expensive glass filters- it is coated on both sides, so that the chance of two pinholes overlapping each other is extremely faint. Pinholes do appear, but to 1 out of 10000 only, in optical density 2.5!\u003c\/p\u003e\n\u003cp\u003eThis foil is CE-tested and intended for solar viewing with optical instruments (telescopes, binoculars, cameras). AstroSolar® Safety Film 5.0 is not authorized to be used for naked eye solar observation or production of solar viewers. For direct solar viewing without telescope, binocular or camera optics, inquire for our EN ISO 12312-2:2015 certified Baader Solar Viewers equipped with AstroSolar® Silver\/Gold Film.\u003c\/p\u003e\n\u003ch4\u003eHistory and goal of AstroSolarTM:\u003c\/h4\u003e\n\u003cp\u003eBaader Planetarium delivered solar safety film for 19 million eclipse viewers that were used throughout Europe for the August 11 Eclipse. Not one user of their films suffered from eye damage. Baader has produced solar safety films for over 17 years and has reason to claim a high degree of competence for all aspects of solar observation. With Baader AstroSolarTM we are set out to show you the Sun' s hidden grandeur at a fraction of the cost for comparable equipment. Real professional solar work has typically been restricted to a few die hard amateurs who would put up the $1000,- or more for a real precision 1\/20 wave glass filter. Now you can get an equally precise AstroSolarTM filter to fit an 8\" aperture for $36 (or much less even, if a whole group of people share a larger roll of film). No longer will solar observation be a \"ho hum\" experience, where you look into your telescope through an \"economy priced\" glass or mylar filter and wonder what this kind of amateur activity is all about. Many of our customers have pushed out the glass or mylar from their older filters only to use their filter cell for AstroSolarTM- and experience a completely new, crisp, and incredibly esthetic sun. All of a sudden, the telescope has the same performance during the day that it has at night, and now they realize that the consistently 'poor seeing' at their site was really just a consistently poor solar filter.. We are always amazed how easily some amateurs accept mediocre sharpness during observation of our nearest star, while they can be extremely critical if their telescope does not perform perfect on other stars (or planets).\u003c\/p\u003e\n\u003ch4\u003eProduction secrets \/ products:\u003c\/h4\u003e\n\u003cp\u003eThe development of AstroSolarTM was only possible due to the incredible demand during the 1999 eclipse. Dozens of miles of film were destroyed during tests to produce the tooling and process techniques to produce an absolutely uniform molecular structure for the substrate. Not to speak of the related treatments, annealing and dual side coating that the film undergoes until it has attained the desired properties.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003eA4-size: ca. 20 x 29 cm (8\" x 12\")\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459278\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825034595\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Photo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 20 x 29 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100 x 50 cm (40\" x 20\")\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825008541\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Photo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eca. 100 x 50 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instructions_to_use_astrosolar_film.pdf?v=1590503647\"\u003eInstructions to use AstroSolar Film\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_solar_filter_for_cameras_binoculars_and_telescope_8a6e05c5-5004-4706-bc7a-4bf42e0d0deb.pdf?v=1707055867\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_solar_filter_for_cameras_binoculars_and_telescope_8a6e05c5-5004-4706-bc7a-4bf42e0d0deb.pdf?v=1707055867\"\u003eHow to make your own PHOTO solar filter for cameras and telescopes\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_astrosolar_photo_film.pdf?v=1590503653\"\u003eTestreview AstroSolar Photo Film\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"A4-size: ca. 20 x 29 cm (8\" x 12\")","offer_id":32120993251405,"sku":"ASOLP-S","price":44.0,"currency_code":"USD","in_stock":true},{"title":"100 x 50 cm (40\" x 20\")","offer_id":32245053751373,"sku":"ASOLP-M","price":111.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2459278_astrosolar-foto-a4_0915_de_square.jpg?v=1750791559"},{"product_id":"research-grade-tz-3-telecentric-system-3x-focal-length","title":"Research Grade TZ-3 Telecentric System (3x focal length)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch5\u003eBaader Telecentric Systems for focal length extension for supplying a parallel optical beam and for providing sufficient backfocus, in conjunction with any SolarSpectrum H-alpha filter\u003c\/h5\u003e\n\u003cp\u003eTelecentric optics sets are often confused with a barlow lens. Both can be used to increase the focal length. Telecentric assys are designed so that the exit pupil seemingly is positioned at infinity, which means that the center ray from any point in the field appears to come from infinity and is therefore perpendicular to the image plane and parallel to the optic axis. This means that the off axis beam arrives at the image plane with the same angular geometry as the axial rays. All field elements look as if they where on axis, across the image plane and- unlike to a barlow lens- the edge field rays are not tipped bundles.\u003c\/p\u003e\n\u003cp\u003eBecause all the principal rays across the image plane are perpendicular to the image plane, the rays at the edge of the field will pass through an etalon just in front of the focal plane with exactly the same geometry as the rays on axis. So in an f\/30 telecentric optical arrangement, the etalon sees the exact same geometry clear across the field, and the spectral bandpass does not shift in wavelength across the entire field of view.\u003c\/p\u003e\n\u003cp\u003eStarting from an aperture ratio of ~f\/15 (+2x Telecentric), ~f\/10 (+3x Telecentric) or ~f\/7.5 (+4x Telecentric), the Baader TZ-systems will create a parallel beam with ~f\/30 aperture ratio. In the case of largely deviating telescope focal lengths, the clear objective aperture of the telescope should be reduced in diameter to the point that the final resulting f\/ratio is close to f\/30 again (we offer a suitable iris-diaphragm for this purpose, or the user can construct their own aperture stop).\u003c\/p\u003e\n\u003cp\u003eTZ-system working distances- when measured from their rear lens- range from 200mm for the TZ-2 to 230 mm for the TZ-4- to 250 mm for the TZ-3. This provides enough room for the H-alpha filter housing and most any accessories, e.g. a Baader 2\" star diagonal, Binoviewer, or any conceivable camera device. The generous room of the TZ-3 will also accommodate a binocular viewer when it is mounted onto the SolarSpectrum body by means of a Baader BBHS T-2 star diagonal. All TZ-coatings are matched to the different lens glass-substrates and optimized for maximum throughput at 656 nm. Still the TZ-3 especially also works for CaK at 396 nm. The TZ-3 Strehl-ratio is well above 80% at 396 nm\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2459257\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825008695\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eFOCAL LENGTH EXTENSION\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e3x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003efor H-alpha observation with SolarSpectrum filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eINNER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eThread, T-2 (M42 x 0,75), 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eThread, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eThread, T-2 (M42 x 0,75), 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_telecentric_systems_tzs_for_h_solar_filters.pdf?v=1590568855\"\u003eBaader Telecentric Systems (TZS) for H-α solar filters\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_m68_tele_compendium_telescope_connector_for_solarspectrum_baader_ffc_and_telecentric_systems.pdf?v=1590568479\"\u003eBaader M68 Tele-Compendium | Telescope-connector for SolarSpectrum, Baader FFC and telecentric systems\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32121018548301,"sku":"TZ-3","price":652.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2459257-999-o-n-2.jpg?v=1750791513"},{"product_id":"solarspectrum-research-grade-0-4x-telecompressor-2","title":"SolarSpectrum Research Grade 0.4x Telecompressor 2\"","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eLike the TZ-3 telecentric, the RG 0.4x Telecompressor features 46mm clear aperture throughout, perfectly suitable even for large SolarSpectrum RG46 Research Grade H-alpha Filters\u003c\/li\u003e\n\u003cli\u003eWorking distance: 74mm (Distance to the camera sensor), optimized for videography and full solar disc imaging. ؘ 16 mm corrected image field in conjunction with the TZ-3\u003c\/li\u003e\n\u003cli\u003eMounts straight onto the eyepiece-side of the body of the SolarSpectrum filter and reduces the telecentric extended f\/ratio by a factor of 0.4\u003c\/li\u003e\n\u003cli\u003e2\" external threads on both sides, fitting the SolarSpectrum Universal Flange Adapter #2958240\u003c\/li\u003e\n\u003cli\u003eThe RG 0.4x Telecompressor serves to adjust the focal length in order to improve poor seeing conditions and \/ or to enlarge the field of view for photographic or lucky imaging applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBaader Planetarium has designed this new optimized telecentric system for use with Solar Spectrum H-Alpha systems. A telecentric system is used to convert shorter focal ratio telescopes to the desired f\/25 or greater beam needed by the rear mounted Solar Spectrum filter. More than a barlow lens or barlow lens based system, the Baader telecentric ensures that the output beam maintains a consistent normal incident angle across the full filter width. The result is a consistent bandwidth and high image contrast across the field of view. This lens system has been optimized to maintain an exceedingly high optical quality for dedicated solar use (\u0026gt;99% strehl at 656.3nm). Simpler barlow or barlow-based systems are not able to produce this level of accuracy or telecentricity. Hard Dielectric IR coatings further help to reject IR energy and protect the rear etalon from excessive heat energy. \u003c\/p\u003e\n\u003cp\u003eSolar Spectrum H-alpha filters require parallel light with a ray path of at least f\/30. This is achieved by a focal length with our telecentric systems (and possibly also by dimming the lens with the iris). Because of the focal length extension in many telescopes the sun's full disc us unable to be viewed even when using eyepieces with f = 30 to 35 mm.\u003c\/p\u003e\n\u003cp\u003eBoth Solar Spectrum Telecompressors are mounted eyepiece-sided directly on the filter and reduce the previously extended focal length again by a factor of 0.4x (#2459260) and 0.7x (#2459259) with the result that now the whole solar disk with prominences is visible again.\u003c\/p\u003e\n\u003cp\u003eA telecompressor is slso used to adjust the focal length to possibly poor seeing conditions and \/ or enlarging the field for photographic- or webcam applications.\u003c\/p\u003e\n\u003cp\u003eTo attach the telecompressor use our 2\" Universal flange (# 295 8240); it attaches with four screws directly onto the filter housing (see illustration), the telecompressor is mounted directly into the 2\" thread of the universal flange. The main thread of the compressor also is a 2\" male thread. This can be changed if necessary with parts from our T-2 accessories system either to a T-2 internal or external thread.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTelecentric systems are available in a 2X, 3X, and a 4X version. Please contact us for further specifics and availability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h6\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2459260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825008671\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.105\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003cspan\u003eDownloads\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/notes_on_safe_use_of_the_baader_d_erf_filter.pdf?v=1586883194\"\u003eNotes on safe use of the Baader D-ERF Filter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solar_spectrum_narrowband_heated_h_alpha_filters.pdf?v=1590568726\"\u003eSolar Spectrum Narrowband heated H-alpha Filters\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":32121018744909,"sku":"CMPRSR2","price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/2459260_telecompressor-0-4x.jpg?v=1750791512"},{"product_id":"solar-spectrum-advanced-observer-32mm-clear-aperture","title":"Solar Spectrum Advanced Solar Observer (32mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eAdvanced Solar Observer Filter: Standard-Filter with a clear aperture of 32mm. Shows the full sun disk up to effective focal lengths of approx. 2700mm\u003c\/li\u003e\n\u003cli\u003eDifferent Halfbandwidths available- please choose \"Version\"\u003c\/li\u003e\n\u003cli\u003eHeated H-alpha- Filter (lambda = 656,3 nm) with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan size=\"2\"\u003eLarge 32mm clear aperture, enables visual use with 2\" eyepieces and larger format imaging. Enables full disk views with focal lengths below 3000mm. Available in the following halfbandwidths- \u003c\/span\u003e0.65A, 0.5A, 0.3A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower bandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.30 +\/- 0.05 Angstrom","offer_id":46402844950764,"sku":"SS-ASO.3","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.50 +\/- 0.05 Angstrom","offer_id":46402844983532,"sku":"SS-ASO.5","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.65 +\/- 0.05 Angstrom","offer_id":46402845016300,"sku":"SS-ASO.65","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2.jpg?v=1750791369"},{"product_id":"asbf-astrosolar-binocular-filter-od-5-0-50mm-100mm","title":"ASBF: AstroSolar Binocular Filter OD 5.0 (50mm- 100mm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch4\u003eASBF- Baader Solar Filter for Binoculars\u003c\/h4\u003e\n\u003cp\u003eSafe solar observation with all types of binoculars \/ safe solar photography with all camera lenses. The AstroSolar filter material is likewise mounted onto a plastic ring whereas the plastic ring itself works as stabilizing element for the filter cell. This still plastic ring is mounted onto the aluminum front frame. The thermal expansion coefficient of the plastic and the film are similar. This category is essentially similar to the ASSF in terms of mechanics. The only difference is that one side is cut off in order to make them usable on any binocular- even when the bridge is nearly closed. (depending on the binocular type).\u003c\/p\u003e\n\u003cul style=\"font-weight: 400;\"\u003e\n\u003cli\u003eASBF 50 to 100 packages come with three centering bolts of 13mm diameter and 24 mm height, and\u003cspan\u003e \u003c\/span\u003e3 Safety Straps with adhesive pads, screws, washers and instructions\u003c\/li\u003e\n\u003cli\u003eImportant note:\u003cspan\u003e \u003c\/span\u003eOne side of filter cell shortened for use with binoculars. Two filters are mandatory, mentioned price is for one piece only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" cellpadding=\"0\" border=\"1\" bordercolor=\"#111111\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"12%\"\u003e\u003cb\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003eAlpine #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"9%\"\u003e\u003cb\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003eBaader #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"10%\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003e\u003cb\u003e(mm\/inch)\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"10%\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"font-size: xx-small;\" size=\"1\"\u003eIdeally Suited for\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003eRange (mm)\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"16%\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003e\u003cb\u003eInner Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"46\" width=\"17%\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\" size=\"2\"\u003e\u003cb\u003eOuter Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"12%\"\u003e\u003cb\u003eASBF-50\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"9%\"\u003e2459325\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e50 \/ 2.0\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e40- 60\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"16%\"\u003e81- 96\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"17%\"\u003e55- 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"12%\"\u003e\u003cb\u003eASBF-60\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"9%\"\u003e2459326\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e60 \/ 2.4\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e50- 70\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"16%\"\u003e91- 106\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"17%\"\u003e65- 80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"12%\"\u003e\u003cb\u003eASBF-70\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"9%\"\u003e2459327\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e70 \/ 2.8\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e60- 80\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"16%\"\u003e101- 116\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"17%\"\u003e75- 90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"12%\"\u003e\u003cb\u003eASBF-80\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"9%\"\u003e2459328\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e80 \/ 3.2\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e70- 90\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"16%\"\u003e111- 126\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"17%\"\u003e85- 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"12%\"\u003e\u003cb\u003eASBF-100\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"9%\"\u003e2459329\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e100 \/ 3.9\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"10%\"\u003e90- 110\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"16%\"\u003e131- 146\u003c\/td\u003e\n\u003ctd align=\"center\" height=\"19\" width=\"17%\"\u003e105- 120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eAbout BSF\u003c\/h4\u003e\n\u003cp\u003eAfter 15 years of offering AstroSolar film sheets as a DIY-product, this system of Baader Solar FiltersTM is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film. Many ready-made filters stretch the filter material like a drumhead in order to make it look like a piece of glass- this absolutely estroys the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision planeoptical window. It sounds like a contradiction with the traditional perception of quality, but AstroSolar must show slight ripples! When the film is put under stress by an improper cell mount its optical quality is degraded and it tehn performs just like a common coated glass-filter made of untreated floatglass.\u003c\/p\u003e\n\u003cp\u003eWith AstroSolarTM the Sun appears in it€™ s real color- neutral white. Other films and most glass filters produce a blurry bluish, yellow-orange, or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters are available in 3 types; ASTF- AstroSolar Telescope Filter, ASSF- AstroSolar Spotter Filter, and ASBF- AstroSolar Binocular Filter. With a total 21 sizes, there is a Baader Solar Filter available to fit practically every Telescope, Spotting Scope and Binocular.\u003c\/p\u003e\n\u003ch4\u003eSupplied with each BSF\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal Baader AstroSolar® Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of Baader's staff\u003c\/li\u003e\n\u003cli\u003eClear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge\u003c\/li\u003e\n\u003cli\u003e3 injection molded centering-bolts with threaded brass inserts to center the filter-cell in front of the tube opening. These bolts come in three different diameters, depending on the filter category (ASTF\/ASSF\/ASBF). Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube- but to come off very hard\u003c\/li\u003e\n\u003cli\u003eNo tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube NOTE: SCT Users must only mount the filter to the Outside of the Tube (the limited depth of the SCT front ID prevents adequate engagement of the centering bolts)\u003c\/li\u003e\n\u003cli\u003eNon-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index\u003c\/li\u003e\n\u003cli\u003eAdditional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user\u003c\/li\u003e\n\u003cli\u003eIndex scale provided beside each adjustment slot- adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes\u003c\/li\u003e\n\u003cli\u003eBlack sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame- for blocking sunlight from passing trough the filter cell beside the filter area\u003c\/li\u003e\n\u003cli\u003eOnly for ASTF-filters: rubber plugs supplied as cover for closing unused adjustment slots in the aluminum frame\u003c\/li\u003e\n\u003cli\u003eThree security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf)\u003c\/li\u003e\n\u003cli\u003eWarning text printed onto the front side of each filter cell: Read the Instructions before use\u003c\/li\u003e\n\u003cli\u003eCardboard gift box fit for safely shipping the filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e-\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e(link to Safety Information)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan size=\"4\" color=\"#006699\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e50mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459325\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033079\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e55- 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e81- 96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e60mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459326\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033086\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e65- 80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e91- 106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e70mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459327\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033093\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e75- 90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e101- 116\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e80mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459328\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033109\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e85- 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e111- 126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100mm\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459329\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033116\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e105- 120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e131- 146\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instruction_manual_and_application_examples_b387d8a0-1425-4e9c-9a2d-a97992d4756e.pdf?v=1710436264\"\u003eBaader Solar Filter Manual»¿\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_can_i_observe_the_eclipse_in_full_safety_without_buying_any_commercial_product.pdf?v=1590503647\"\u003eHow can I observe the eclipse in full safety without buying any commercial product?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_solar_filters_clamping_range.pdf?v=1590504266\"\u003eBaader Solar Filters Clamping Range\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_the_baader_astf_solar_whitelight_filter_w_paolini.pdf?v=1590504266\"\u003eTestreview- The Baader ASTF Solar Whitelight Filter- W. Paolini\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_att_magazine_baader_solar_filters_bsf.pdf?v=1590504266\"\u003eTestreview ATT-Magazine: Baader Solar Filters (BSF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"50 mm","offer_id":32164741218381,"sku":"ASBF-50","price":53.0,"currency_code":"USD","in_stock":true},{"title":"60 mm","offer_id":32244813135949,"sku":"ASBF-60","price":62.0,"currency_code":"USD","in_stock":true},{"title":"70 mm","offer_id":32244814151757,"sku":"ASBF-70","price":68.0,"currency_code":"USD","in_stock":true},{"title":"80 mm","offer_id":32244815102029,"sku":"ASBF-80","price":77.0,"currency_code":"USD","in_stock":true},{"title":"100 mm","offer_id":32244815593549,"sku":"ASBF-100","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-solar-filter_asbf.jpg?v=1750791368"},{"product_id":"assf-astrosolar-spotting-scope-filter-od-5-0-50mm-150mm","title":"ASSF: AstroSolar Spotting Scope Filter OD 5.0 (50mm- 150mm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch4\u003eASSF- \u003cb\u003e\u003cspan\u003eBaader Solar Filter for Spotting Scopes, amateur telescopes and camera lenses\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThis family of filters offers a stable and rigid solution for all spotting scopes, camera telephoto-lenses and amateur telescopes, with magnifications up to 120x. The AstroSolar filter material is likewise mounted onto a plastic ring whereas the plastic ring itself works as stabilizing element for the filter cell. This plastic ring is mounted onto the aluminum front frame. The thermal expansion coefficient of the plastic and the film are similar to minimize thermal stress on the film.\u003c\/p\u003e\n\u003cul style=\"font-weight: 400;\"\u003e\n\u003cli\u003eASBF 50 to 100 packages come with three centering bolts of 13mm diameter and 24 mm height, and\u003cspan\u003e \u003c\/span\u003e3 Safety Straps with adhesive pads, screws, washers and instructions\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eASSF 130 and 150 packages come with three centering bolts of 10mm diameter and 38mm length\u003c\/span\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e3 Safety Straps with adhesive pads, screws, washers and instructions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable border=\"1\" cellpadding=\"0\" cellspacing=\"0\" width=\"100%\" height=\"226\" bordercolor=\"#111111\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"46\" align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAlpine #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"46\" align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eBaader #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"46\" align=\"center\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003e(mm\/inch)\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"46\" align=\"center\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"1\" style=\"font-size: xx-small;\"\u003eIdeally Suited for\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eRange (mm)\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"46\" align=\"center\"\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eInner Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"46\" align=\"center\"\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eOuter Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-50\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459335\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e50 \/ 2.0\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e40- 60\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e81- 96\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e55- 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-65\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459336\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e65 \/ 2.6\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e55- 75\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e96- 111\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e70- 85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-80\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459337\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e80 \/ 3.2\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e70- 90\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e111- 126\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e85- 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-100\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459338\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e100 \/ 3.9\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e90- 110\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e131- 146\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e105- 120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-115\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459339\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e115 \/ 4.5\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e105- 125\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e146- 161\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e120- 135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-130\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459340\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e130 \/ 5.1\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e120- 140\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e168- 198\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e148- 178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASSF-150\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e2459341\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e150 \/ 5.9\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e140- 160\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e188- 218\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e168- 198\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eAbout BSF\u003c\/h4\u003e\n\u003cp\u003eAfter 15 years of offering AstroSolar film sheets as a DIY-product, this system of Baader Solar FiltersTM is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film. Many ready-made filters stretch the filter material like a drumhead in order to make it look like a piece of glass- this absolutely estroys the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision planeoptical window. It sounds like a contradiction with the traditional perception of quality, but AstroSolar must show slight ripples! When the film is put under stress by an improper cell mount its optical quality is degraded and it tehn performs just like a common coated glass-filter made of untreated floatglass.\u003c\/p\u003e\n\u003cp\u003eWith AstroSolarTM the Sun appears in it€™ s real color- neutral white. Other films and most glass filters produce a blurry bluish, yellow-orange, or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters are available in 3 types; ASTF- AstroSolar Telescope Filter, ASSF- AstroSolar Spotter Filter, and ASBF- AstroSolar Binocular Filter. With a total 21 sizes, there is a Baader Solar Filter available to fit practically every Telescope, Spotting Scope and Binocular.\u003c\/p\u003e\n\u003ch4\u003eSupplied with each BSF\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal Baader AstroSolar® Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of Baader's staff\u003c\/li\u003e\n\u003cli\u003eClear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge\u003c\/li\u003e\n\u003cli\u003e3 injection molded centering-bolts with threaded brass inserts to center the filter-cell in front of the tube opening. These bolts come in three different diameters, depending on the filter category (ASTF\/ASSF\/ASBF). Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube- but to come off very hard\u003c\/li\u003e\n\u003cli\u003eNo tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube NOTE: SCT Users must only mount the filter to the Outside of the Tube (the limited depth of the SCT front ID prevents adequate engagement of the centering bolts)\u003c\/li\u003e\n\u003cli\u003eNon-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index\u003c\/li\u003e\n\u003cli\u003eAdditional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user\u003c\/li\u003e\n\u003cli\u003eIndex scale provided beside each adjustment slot- adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes\u003c\/li\u003e\n\u003cli\u003eBlack sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame- for blocking sunlight from passing trough the filter cell beside the filter area\u003c\/li\u003e\n\u003cli\u003eOnly for ASTF-filters: rubber plugs supplied as cover for closing unused adjustment slots in the aluminum frame\u003c\/li\u003e\n\u003cli\u003eThree security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf)\u003c\/li\u003e\n\u003cli\u003eWarning text printed onto the front side of each filter cell: Read the Instructions before use\u003c\/li\u003e\n\u003cli\u003eCardboard gift box fit for safely shipping the filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e-\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e(link to Safety Information)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan color=\"#006699\" size=\"4\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003cbr\u003e\n\u003c\/h6\u003e\n\u003ch2\u003e50mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459335\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033123\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e55- 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e81- 96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e65mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e65 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459336\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e70- 85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e96- 111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e80mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459337\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033147\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e85- 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e111- 126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459338\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033154\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e105- 120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e131- 146\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e115mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e115 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459339\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033161\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120- 135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (13MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e146- 161\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e130mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e148- 178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e168- 198\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e150mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459341\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033185\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e168- 198\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e188- 218\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instruction_manual_and_application_examples_b387d8a0-1425-4e9c-9a2d-a97992d4756e.pdf?v=1710436264\"\u003eBaader Solar Filter Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_can_i_observe_the_eclipse_in_full_safety_without_buying_any_commercial_product.pdf?v=1590503647\"\u003e»¿How can I observe the eclipse in full safety without buying any commercial product?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_solar_filters_clamping_range.pdf?v=1590504266\"\u003eBaader Solar Filters Clamping Range\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_the_baader_astf_solar_whitelight_filter_w_paolini.pdf?v=1590504266\"\u003eTestreview- The Baader ASTF Solar Whitelight Filter- W. Paolini\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_att_magazine_baader_solar_filters_bsf.pdf?v=1590504266\"\u003eTestreview ATT-Magazine: Baader Solar Filters (BSF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"50 mm","offer_id":32164741251149,"sku":"ASSF-50","price":55.0,"currency_code":"USD","in_stock":true},{"title":"65 mm","offer_id":32244840693837,"sku":"ASSF-65","price":64.0,"currency_code":"USD","in_stock":true},{"title":"80 mm","offer_id":32244841185357,"sku":"ASSF-80","price":77.0,"currency_code":"USD","in_stock":true},{"title":"100 mm","offer_id":32244842922061,"sku":"ASSF-100","price":94.0,"currency_code":"USD","in_stock":true},{"title":"115 mm","offer_id":32244847870029,"sku":"ASSF-115","price":100.0,"currency_code":"USD","in_stock":true},{"title":"130 mm","offer_id":32244848492621,"sku":"ASSF-130","price":119.0,"currency_code":"USD","in_stock":true},{"title":"150 mm","offer_id":32244852654157,"sku":"ASSF-150","price":138.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-solar-filter_assf.jpg?v=1750791367"},{"product_id":"astf-astrosolar-telescope-filter-od-5-0-80mm-280mm","title":"ASTF: AstroSolar Telescope Filter OD 5.0 (80mm- 280mm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch4\u003eASTF- \u003cb\u003e\u003cspan\u003eBaader Solar Filter for all high-end Telescopes (Refractors, Reflectors, CATs)\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThis family of solar filters is made in the most elaborate way. AstroSolar must not be put under stress, neither during mounting of the film, nor during any temperature change. For this reason the ASTF-Filter features a temperature compensated cell. The film itself is repeatably cemented onto an injection molded ring, whereas the substrate of that ring has the same thermal expansion like the AstroSolar Filter material itself. This free floating film-carrier ring is held onto the aluminum frame with the help of another holding ring made of fiber reinforced plastic- for a maximum of security against breakage of the cell. This temperature compensated cell enables the AstroSolar filter material to retain its excellent optical quality at any temperature- be it-30°C or +50°C\u003c\/p\u003e\n\u003cul style=\"font-weight: 400;\"\u003e\n\u003cli\u003eSafe for solar observation and photography with all high-end telescopes and extreme tele-lenses\u003c\/li\u003e\n\u003cli\u003eAstroSolar Safety Film OD 5.0, mounted stress free in temperature compensated cell\u003c\/li\u003e\n\u003cli\u003eSuitable for highest magnifications and detailed observation of individual sunspots\u003c\/li\u003e\n\u003cli\u003eNo Astigmatism during winter observation or with temperature changes in summer\u003c\/li\u003e\n\u003cli\u003e2 sets of 3 injection molded centering-bolts (length 38mm) with threaded brass inserts to center the filter-cell in front of the tube opening. These bolts come in two diameters, 10mm and 20mm. Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube- but to come off very hard.\u003c\/li\u003e\n\u003cli\u003eIncludes 3 Safety Straps with adhesive pads, screws, washers and instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNOTE: SCT Users must only mount the filter to the Outside of the Tube (the limited depth of the SCT front ID prevents adequate engagement of the centering bolts)\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"0\" cellspacing=\"0\" width=\"100%\" height=\"226\" bordercolor=\"#111111\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"46\" align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAlpine #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"46\" align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eBaader #\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"46\" align=\"center\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003e(mm\/inch)\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"46\" align=\"center\"\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"1\" style=\"font-size: xx-small;\"\u003eIdeally Suited for\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003eRange (mm)\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"46\" align=\"center\"\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eInner Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"46\" align=\"center\"\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eClamping Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"2\" style=\"font-size: small;\"\u003e\u003cb\u003eOuter Tube Dia\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-80\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593310\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e80 \/ 3.2\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e70- 90\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e130- 170\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e100- 140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-100\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593311\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e100 \/ 3.9\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e90- 110\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e150- 190\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e120- 160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-120\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593312\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e120 \/ 4.7\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e110- 130\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e170- 210\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e140- 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-140\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593313\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e140 \/ 3.2\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e130- 150\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e190- 230\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e160- 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-160\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593314\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e160 \/ 5.5\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e150- 170\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e210- 250\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e180- 220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-180\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593315\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e180 \/ 7.1\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e170- 190\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e230- 270\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e200- 240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-200\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593316\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e200 \/ 7.9\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e190- 210\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e250- 290\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e220- 260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-240\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593317\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e240 \/ 9.5\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e230- 250\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e290- 330\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e260- 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"12%\" height=\"19\" align=\"center\"\u003e\u003cb\u003eASTF-280\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"9%\" height=\"19\" align=\"center\"\u003e24593318\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e280 \/ 11.0\u003c\/td\u003e\n\u003ctd width=\"10%\" height=\"19\" align=\"center\"\u003e270- 290\u003c\/td\u003e\n\u003ctd width=\"16%\" height=\"19\" align=\"center\"\u003e330- 370\u003c\/td\u003e\n\u003ctd width=\"17%\" height=\"19\" align=\"center\"\u003e300- 340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eAbout BSF\u003c\/h4\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eAfter 15 years of offering AstroSolar film sheets as a DIY-product, this system of Baader Solar FiltersTM is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film. Many ready-made filters stretch the filter material like a drumhead in order to make it look like a piece of glass- this absolutely estroys the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision planeoptical window. It sounds like a contradiction with the traditional perception of quality, but AstroSolar must show slight ripples! When the film is put under stress by an improper cell mount its optical quality is degraded and it tehn performs just like a common coated glass-filter made of untreated floatglass.\u003c\/p\u003e\n\u003cp\u003eWith AstroSolarTM the Sun appears in it€™ s real color- neutral white. Other films and most glass filters produce a blurry bluish, yellow-orange, or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.\u003c\/p\u003e\n\u003cp\u003eBaader Solar Filters are available in 3 types; ASTF- AstroSolar Telescope Filter, ASSF- AstroSolar Spotter Filter, and ASBF- AstroSolar Binocular Filter. With a total 21 sizes, there is a Baader Solar Filter available to fit practically every Telescope, Spotting Scope and Binocular.\u003c\/p\u003e\n\u003ch4\u003eSupplied with each BSF\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal Baader AstroSolar® Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of Baader's staff\u003c\/li\u003e\n\u003cli\u003eClear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge\u003c\/li\u003e\n\u003cli\u003e3 injection molded centering-bolts with threaded brass inserts to center the filter-cell in front of the tube opening. These bolts come in three different diameters, depending on the filter category (ASTF\/ASSF\/ASBF). Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube- but to come off very hard\u003c\/li\u003e\n\u003cli\u003eNo tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube NOTE: SCT Users must only mount the filter to the Outside of the Tube (the limited depth of the SCT front ID prevents adequate engagement of the centering bolts)\u003c\/li\u003e\n\u003cli\u003eNon-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index\u003c\/li\u003e\n\u003cli\u003eAdditional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user\u003c\/li\u003e\n\u003cli\u003eIndex scale provided beside each adjustment slot- adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes\u003c\/li\u003e\n\u003cli\u003eBlack sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame- for blocking sunlight from passing trough the filter cell beside the filter area\u003c\/li\u003e\n\u003cli\u003eOnly for ASTF-filters: rubber plugs supplied as cover for closing unused adjustment slots in the aluminum frame\u003c\/li\u003e\n\u003cli\u003eThree security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf)\u003c\/li\u003e\n\u003cli\u003eWarning text printed onto the front side of each filter cell: Read the Instructions before use\u003c\/li\u003e\n\u003cli\u003eCardboard gift box fit for safely shipping the filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e-\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e(link to Safety Information)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan color=\"#006699\" size=\"4\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e80mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459310\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825032997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e110- 140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130- 160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100- 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140- 170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459311\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130- 160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150- 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120- 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160- 190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e120mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459312\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150- 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170- 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140- 170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180- 210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e140mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459313\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170- 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190- 220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160- 190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200- 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e160mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459314\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190- 220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210- 240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180- 210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e220- 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e180mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459315\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033192\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210- 240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230- 260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200- 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240- 270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e200mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033048\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230- 260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e250- 280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e220- 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e260- 290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e240mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459317\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033055\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e270- 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e290- 320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e260- 290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e300- 330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e280mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e280 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459318\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825033062\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVisual solar observation and imaging at high magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e310- 340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e330- 360\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e300- 330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e340- 370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instruction_manual_and_application_examples_b387d8a0-1425-4e9c-9a2d-a97992d4756e.pdf?v=1710436264\"\u003eBaader Solar Filter Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_can_i_observe_the_eclipse_in_full_safety_without_buying_any_commercial_product.pdf?v=1590503647\"\u003e»¿How can I observe the eclipse in full safety without buying any commercial product?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_solar_filters_clamping_range.pdf?v=1590504266\"\u003eBaader Solar Filters Clamping Range\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_the_baader_astf_solar_whitelight_filter_w_paolini.pdf?v=1590504266\"\u003eTestreview- The Baader ASTF Solar Whitelight Filter- W. Paolini\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_att_magazine_baader_solar_filters_bsf.pdf?v=1590504266\"\u003eTestreview ATT-Magazine: Baader Solar Filters (BSF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"80 mm","offer_id":32164741283917,"sku":"ASTF-80","price":101.0,"currency_code":"USD","in_stock":true},{"title":"100 mm","offer_id":32244871462989,"sku":"ASTF-100","price":117.0,"currency_code":"USD","in_stock":true},{"title":"120 mm","offer_id":32244873035853,"sku":"ASTF-120","price":135.0,"currency_code":"USD","in_stock":true},{"title":"140 mm","offer_id":32244873330765,"sku":"ASTF-140","price":148.0,"currency_code":"USD","in_stock":true},{"title":"160 mm","offer_id":32244873822285,"sku":"ASTF-160","price":165.0,"currency_code":"USD","in_stock":true},{"title":"180 mm","offer_id":32244874346573,"sku":"ASTF-180","price":183.0,"currency_code":"USD","in_stock":true},{"title":"200 mm","offer_id":32244875001933,"sku":"ASTF-200","price":203.0,"currency_code":"USD","in_stock":true},{"title":"240 mm","offer_id":32244875493453,"sku":"ASTF-240","price":234.0,"currency_code":"USD","in_stock":true},{"title":"280 mm","offer_id":32244875788365,"sku":"ASTF-280","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-solar-filter_astf.jpg?v=1750791365"},{"product_id":"bdsf-od-3-8-baader-digital-solar-filter-80mm-280mm","title":"BDSF: OD 3.8 Baader Digital Solar Filter (80mm- 280mm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eNote: The product will have ASTF printed on both the box and bezel on the filter. The BSDF will have stickers to indicate it is BSDF and fitted with the OD 3.8 AstroSolar Safety Film.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eNOT suitable for visual solar observation- permanent eye injury will result from any visual use, including use of optical viewfinders on DSLR cameras\u003c\/span\u003e. Only use for digital imaging with all high-end telescopes and extreme tele-lenses (lucky imaging technique). Suitable for highest magnifications and detailed imaging of individual sunspots\u003c\/li\u003e\n\u003cli\u003eAstroSolar PHOTO Film OD 3.8, mounted stress free in temperature compensated cell\u003c\/li\u003e\n\u003cli\u003eNo astigmatism during winter observation or with temperature changes in summer\u003c\/li\u003e\n\u003cli\u003eScope of Supply: \u003cstrong\u003eBDSF (ASTF) Filter\u003c\/strong\u003e with apertures from 80 to 180mm (200- 280mm not yet available) come with two sets of centering bolts in 38mm length. 3 bolts with 10mm diameter and 3 bolts with 20mm diameter, adjustable to the tube diameter of your telescope or dew cap. In addition three safety straps with glue-pads and three rubber plugs to cover the holes that are not used, mounting instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Baader Digital Solar Filter with PHOTO-Film OD 3.8 is a development made possible after the product launch of our Baader Solar Filters OD 5.0 in spring 2015. The filter has the same cell and mechanical specifications as our ASTF-Filter with Safety Film OD 5.0, the only difference lies within the used AstroSolar Film- our AstroSolar PHOTO Film OD 3.8 which has proven itself over the years. This film allows shortest exposure times- mainly used for digital videography and the lucky imaging technique- and thus almost €œfreezes€ turbulences in the earths atmosphere.\u003c\/p\u003e\n\u003ch3\u003eAstroSolar PHOTO Film OD 3.8 is NOT intended to observe the sun, only for digital imaging!\u003c\/h3\u003e\n\u003cp\u003eMany ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass- this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision planeoptical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated floatglass.\u003c\/p\u003e\n\u003ch3\u003eASTF\/BDSF (AstroSolar Telescope Filter)- Baader DIGITAL Solar Filter for high-end Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis family of solar filters is made in the most elaborate way. AstroSolar must not be put under stress, neither during mounting the film, nor during any temperature change. For this reason the ASTF-Filter features a temperature compensated cell. The film itself is repeatably cemented onto an injection molded ring, whereas the substrate of that ring has the same thermal expansion like the Astro Solar Filter material itself. This free floating film-carrier ring is held onto the aluminum frame with the help of another holding ring made of fiber reinforced plastic- for a maximum of security against breaking of the cell. This temperature compensated cell enables the AstroSolar filter material to retain its excellent optical quality at any temperature- be it-30°C or +50°C.\u003c\/p\u003e\n\u003ch3\u003eAll Baader Solar Filters feature:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOnly for BDSF-Filter: original Baader AstroSolar® Photo Film (OD 3.8), cell mounted and quality inspected by skilled members of our staff\u003c\/li\u003e\n\u003cli\u003eclear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge\u003c\/li\u003e\n\u003cli\u003e3 injection molded centering-bolts with threaded brass inserts to center the filter-cell in front of the tube opening. These bolts come in three different diameters, depending on the filter category (ASTF\/ASSF\/ASBF). Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube- but to come off very hard\u003c\/li\u003e\n\u003cli\u003eno tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube\u003c\/li\u003e\n\u003cli\u003enon-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index\u003c\/li\u003e\n\u003cli\u003eadditional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user\u003c\/li\u003e\n\u003cli\u003eindex scale provided beside each adjustment slot- adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes\u003c\/li\u003e\n\u003cli\u003eblack sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame- for blocking sunlight from passing trough the filter cell beside the filter area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eonly for ASTF\/BDSF-filters:\u003c\/strong\u003e rubber plugs supplied as cover for closing unused adjustment slots in the aluminum frame\u003c\/li\u003e\n\u003cli\u003ethree security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf)\u003c\/li\u003e\n\u003cli\u003ewarning text printed onto the front side of each filter cell: Read the Instructions before use\u003c\/li\u003e\n\u003cli\u003ecardboard gift box fit for safely shipping the filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e-\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e(link to Safety Information)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan color=\"#006699\" size=\"4\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e- How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e80mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e110- 140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130- 160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100- 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140- 170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e100mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459371\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103437\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e130- 160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150- 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120- 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160- 190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e120mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459372\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103444\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e150- 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170- 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140- 170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180- 210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e140mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459373\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103451\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e170- 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190- 220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160- 190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200- 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e160mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459374\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103468\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e190- 220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210- 240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180- 210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e220- 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e180mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103475\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e210- 240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230- 260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200- 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240- 270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e200mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459376\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103482\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e230- 260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e250- 280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e220- 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e260- 290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e240mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459377\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e270- 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e290- 320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e260- 290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e300- 330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e280mm\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e280 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2459378\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825103505\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eDigitale Sonnenfotografie bei hضchsten Vergrض؟erungen und kurzen Belichtungszeiten. Nicht visuell geeignet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eAstroSolar Foto Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER DIAMETER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e310- 340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (10MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e330- 360\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e300- 330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CLAMPINGRANGE (20MM BOLTS)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e340- 370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instruction_manual_and_application_examples_b387d8a0-1425-4e9c-9a2d-a97992d4756e.pdf?v=1710436264\"\u003eBaader Solar Filter Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_solar_filters_clamping_range.pdf?v=1590504266\"\u003e»¿Baader Solar Filters Clamping Range\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_the_baader_astf_solar_whitelight_filter_w_paolini.pdf?v=1590504266\"\u003eTestreview- The Baader ASTF Solar Whitelight Filter- W. Paolini\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_att_magazine_baader_solar_filters_bsf.pdf?v=1590504266\"\u003eTestreview ATT-Magazine: Baader Solar Filters (BSF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"80 mm","offer_id":32164741480525,"sku":"BDSF-80","price":123.0,"currency_code":"USD","in_stock":true},{"title":"100 mm","offer_id":32244962656333,"sku":"BDSF-100","price":141.0,"currency_code":"USD","in_stock":true},{"title":"120 mm","offer_id":32244963016781,"sku":"BDSF-120","price":162.0,"currency_code":"USD","in_stock":true},{"title":"140 mm","offer_id":32244963409997,"sku":"BDSF-140","price":178.0,"currency_code":"USD","in_stock":true},{"title":"160 mm","offer_id":32244963541069,"sku":"BDSF-160","price":197.0,"currency_code":"USD","in_stock":true},{"title":"180 mm","offer_id":32244967014477,"sku":"BDSF-180","price":221.0,"currency_code":"USD","in_stock":true},{"title":"200 mm","offer_id":32244967800909,"sku":"BDSF-200","price":170.0,"currency_code":"USD","in_stock":false},{"title":"240 mm","offer_id":32244968357965,"sku":"BDSF-240","price":193.0,"currency_code":"USD","in_stock":false},{"title":"280 mm","offer_id":32244969242701,"sku":"BDSF-280","price":248.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-solar-filter_bdsf-2.jpg?v=1750791363"},{"product_id":"solar-spectrum-research-grade-rg32-32mm-clear-aperture","title":"Solar Spectrum Research Grade RG32 (32mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eResearch Grade Filter RG 32: 32mm clear aperture, selected quality with extremely uniform H-alpha image over the entire image field\u003c\/li\u003e\n\u003cli\u003eDifferent Halfbandwidths available- please choose \"Version\"\u003c\/li\u003e\n\u003cli\u003eHeated H-alpha- Filter (lambda = 656,3 nm) with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e32mm clear aperture, extreme filter uniformity for research applications. Available in the following bandpasses- 0.3A, 0.2A.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\"I used the solar filter today. WOW!!!!!! The level of detail is incredible. Using a Televue Panoptic 35 I can see the entire disk. Using a BinoViewer with 26mm Meade eyepieces, the field of view is smaller but the image looks almost 3D and is far more pleasing. I am more than satisfied with this equipment. Well worth the cost and the wait.\"\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eTony Van Heugten\u003c\/b\u003e\u003cspan\u003e (SO-1.5, 0.3A on a Meade 10\" SCT with 90 C-ERF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower halfbandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.30 +\/- 0.05 Angstrom","offer_id":46402844885228,"sku":"SS-RG32.3","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.50 +\/- 0.05 Angstrom","offer_id":46402844917996,"sku":"SS-RG32.5","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2_1.jpg?v=1750791361"},{"product_id":"solar-spectrum-research-grade-rg-46-46mm-clear-aperture","title":"Solar Spectrum Research Grade RG 46 (46mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eResearch Grade Filter RG 46: 46mm clear aperture, selected quality with extremely uniform H-alpha image over the entire image field\u003c\/li\u003e\n\u003cli\u003eDifferent Halfbandwidths available- please choose \"Version\"\u003c\/li\u003e\n\u003cli\u003eHeated H-alpha- Filter (lambda = 656,3 nm) with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e46mm clear aperture, extreme filter uniformity for research applications. Available in the following bandpasses- 0.7A, 0.5A, 0.3A.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower bandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.30 +\/- 0.03 Angstrom","offer_id":46402844786924,"sku":"SS-RG46.3","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.50 +\/- 0.10 Angstrom","offer_id":46402844819692,"sku":"SS-RG46.5","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.70 +\/- 0.10 Angstrom","offer_id":46402844852460,"sku":"SS-RG46.7","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_research-grade.jpg?v=1750791360"},{"product_id":"solar-spectrum-suna-25mm-clear-aperture","title":"Solar Spectrum Suna (25mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e25mm Clear Aperture\u003c\/li\u003e\n\u003cli\u003eNow with Hard-Coated Blocking Filter\u003c\/li\u003e\n\u003cli\u003eHW of 0.65Ang +\/- 0.1Ang gives best performance for both Disk and Prominences\u003c\/li\u003e\n\u003cli\u003eTiltable Etalon\u003c\/li\u003e\n\u003cli\u003eTEC Oven with controller\u003c\/li\u003e\n\u003cli\u003eCompact Form Factor\u003c\/li\u003e\n\u003cli\u003eCompatible with all Solar Spectrum and Baader H-a adapters and accessories\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe new Suna is Solar Spectrum€™s first tiltable temperature controlled H-alpha filter. The tilt function enables rapid tuning and quick wavelength changes for Doppler observing. Unlike simpler systems, the thermoelectric oven can heat or cool, so it is able to keep the filter precisely on-band even in hot or cold environments.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSuna also incorporates a compact round form-factor housing. Unlike all-in-one solutions with smaller aperture and no ability to adjust the focal ratio, the Suna is fully configurable. Its full-featured design maintains modularity and compatibility with all the Baader H-a accessories and telecentric lenses. It€™s ideal for the amateur looking to get into serious H-a viewing on a budget, and grow with them without compromising performance or capabilities.\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum Suna filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), temperature control box, Power Supply, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong style=\"color: #ff2a00; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: bold; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003eImportant note: \u003c\/strong\u003e\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #ff2a00; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower bandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.65 +\/- 0.1 Angstrom","offer_id":46402844557548,"sku":"SS-SUNA","price":2850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/Suna1.jpg?v=1750791338"},{"product_id":"copy-of-solar-spectrum-research-grade-rg32-32mm-clear-aperture","title":"Solar Spectrum Research Grade RG18 (18mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eResearch Grade Filter RG 18: 18mm clear aperture, selected quality with extremely uniform H-alpha image over the entire image field\u003c\/li\u003e\n\u003cli\u003eHalfbandwidth 0.3 +.1\/-.05 Ang\u003c\/li\u003e\n\u003cli\u003eIdeal for imaging\u003c\/li\u003e\n\u003cli\u003eHeated H-alpha- Filter (lambda = 656,3 nm) with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e18mm clear aperture, extreme filter uniformity for research applications. Available in the following bandpasses- 0.3A.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\"I used the solar filter today. WOW!!!!!! The level of detail is incredible. Using a Televue Panoptic 35 I can see the entire disk. Using a BinoViewer with 26mm Meade eyepieces, the field of view is smaller but the image looks almost 3D and is far more pleasing. I am more than satisfied with this equipment. Well worth the cost and the wait.\"\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eTony Van Heugten\u003c\/b\u003e\u003cspan\u003e (SO-1.5, 0.3A on a Meade 10\" SCT with 90 C-ERF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower halfbandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.30 +\/- 0.05 Angstrom","offer_id":46402844524780,"sku":"SS-RG18.3","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2_1_7a3e4aff-a052-4f4b-b90c-baf773785c4b.jpg?v=1750791337"},{"product_id":"solar-spectrum-solar-observer-25mm-clear-aperture","title":"Solar Spectrum Solar Observer (25mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eSolar Observer Filter: Standard-Filter with a clear aperture of 25mm. Shows the full sun disk up to effective focal lengths of approx. 2300mm\u003c\/li\u003e\n\u003cli\u003eDifferent Halfbandwidths available- please choose \"Version\"\u003c\/li\u003e\n\u003cli\u003eHeated H-alpha- Filter (lambda = 656,3 nm) with electronical temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the lens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan size=\"2\"\u003eLarge 25mm clear aperture, enables visual use with 2\" eyepieces and larger format imaging. Enables full disk views with focal lengths below 2300mm. Available in the following halfbandwidths- \u003c\/span\u003e0.5A, 0.3A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution H-Alpha filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in very narrow filters (\u0026lt; 0.3A) which are extremely demanding to produce.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 12-24 weeks, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics. Narrower bandpasses available on request (primarily for imaging use). Calcium K-Line and custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family:-apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none;-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"0.30 +\/- 0.05 Angstrom","offer_id":46402844393708,"sku":"SS-SO.3","price":0.0,"currency_code":"USD","in_stock":true},{"title":"0.50 +\/- 0.05 Angstrom","offer_id":46402844426476,"sku":"SS-SO.5","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/SolarSpectrum_SO15.jpg?v=1750791336"},{"product_id":"baader-sundancer-ii-telecentric-system-tz-3s","title":"Baader SunDancer II Telecentric System TZ-3S","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/sundancer-logo_480x480.jpg?v=1631973611\" alt=\"\" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eAchromatic 3x telecentric system\u003c\/li\u003e\n\u003cli\u003eFour-lens optical design, BBAR (Broad-Band Anti-Reflection) coating\u003c\/li\u003e\n\u003cli\u003eAnti-reflective thread and blackened lens edges against reflections and for maximum contrast\u003c\/li\u003e\n\u003cli\u003eImage circle 35mm in 65 mm distance to T-2 threaded base\u003c\/li\u003e\n\u003cli\u003e1.25\" and 2\" nosepiece with 1.25\" filter thread, T-2 thread on camera side\u003c\/li\u003e\n\u003cli\u003eThe optical design places the telescope's focal point 28 mm behind the end of the 1.25\" nosepiece\u003c\/li\u003e\n\u003cli\u003e5-year warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease note: when using as a telecentric for H-alpha or CaK solar observation, it is mandatory to include a suitable D-ERF filter in front of the telescope aperture to prevent damage to the lens groups in the telecentric due to overheating. Heat\/melting damage is not a warranty case, but only occurs due to improper operation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eBaader SunDancer II 3x Telecentric System TZ-3S\u003c\/h3\u003e\n\u003cp\u003eTelecentric systems are mainly used in H-alpha filters for solar observation, where the 1\/100 lambda plane-parallel etalon in the H-alpha filter requires a perfectly parallelised beam of light over the entire image. These telecentrics deliver very sharp images, but are usually only optimised for the H-alpha wavelength.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis \u003cstrong\u003eachromatic SunDancer 3x telecentric\u003c\/strong\u003e is designed for the entire visible spectrum and can therefore not only be used on H-alpha systems, but also replace a Barlow lens. Due to the parallel beam of light, it is very good-natured with regard to the working distance: While the magnification factor of a Barlow lens changes with the distance to eyepiece or camera (zoom eyepieces are also based on this principle), the magnification factor and image quality of the TZ-3 do not change, even if the new focal point deviates very significantly from the working distance of the optical design (65 mm).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe achromatic SunDancer II TZ-3S illuminates an image circle of 35mm at a distance of 65mm from the base body, ideal for the small sensors of modern, fast planetary cameras that require high magnifications for photographing the moon and planets. The contrast is better than with simple barlows or the eyepiece projection often used for high magnifications. With the 3x telecentric system, the high magnifications which are necessary for visual observations can also be achieved with long focal length orthoscopic eyepieces. The interpupillary distance of the eyepieces used does not change either.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe connection on the telescope side is made via a dual 1.25\"\/2\" nosepiece with safety kerfs (these prevent tilting due to an incorrectly positioned safety groove and at the same time provide a secure hold). On the camera side, the T-2 thread provides a tilt-proof, fixed connection even to heavy cameras or to T-2 eyepiece clamps. For the T-2 thread, adapter rings are available for almost all common connection systems (e.g. M48 \/ 2\"\/ M68).\u003c\/p\u003e\n\u003ch3\u003eComparing telecentric systems with Barlow lenses\u003c\/h3\u003e\n\u003cp\u003eA telecentric system extends the focal length similar to a Barlow lens, but with parallel rays of light. This means that the working distance is almost the same, and the quality and image scale remain the same. At the same time, the TZ-3S delivers a high-contrast image. For the following comparison shot, a church steeple was photographed with an APS-C DSLR with the same camera settings; once with a Baader Q-Barlow, which was brought to a triple magnification factor with spacer sleeves, and once with the TZ-3S. On cameras with less than 35mm image circle, edge shading is no longer a problem and you benefit from higher contrast of the telecentric.\u003c\/p\u003e\n\u003ch3\u003eComparison of Baader SunDancer II H-alpha-Filter and Baader SunDancer II TZ-3S\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe telecentric system of the Baader SunDancer II H-alpha Filter (#1363056, ‚¬ 3345,-) is the same as the Baader SunDancer II 3x telecentrics TZ-3S, but additionally contains a 2nm (FWHM) blocking filter. It shimmers golden when you look into the SunDancer from the telescope side. This blocking filter is absolutely necessary to protect the actual H-alpha filter from solar radiation. The 3x telecentric system is available as Baader SunDancer II 3x Telecentric TZ-3S without block filter, e.g. for use with other H-alpha filters. The blocking filter, however, is not available separately.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe blocking filter reflects the sunlight just before the etalon and the telecentric system. This protects the etalon from excessive heat. In addition, an etalon also transmits wavelengths that are a multiple of the desired transmission line; these are also blocked by the blocking filter, too.\u003c\/p\u003e\n\u003ch6\u003eImportant Note\u003c\/h6\u003e\n\u003cp\u003eTZ-optical systems are essential for undeteriorated performance of heated SolarSpectrum filters:\u003c\/p\u003e\n\u003cp\u003ePlease note that for H-alpha observations below 1 Ang halfbandwidth (FWHM) a telecentric lens system is absolutely mandatory, in order to achieve the recommended focal ratio of f\/30 to (preferably) f\/40! Because only with a telecentric approach you can create a perfectly parallel optical path which is essential for the unrestricted function of such a complicated etalon.\u003cbr\u003e\u003cbr\u003eA TZ-lens-system is an ESSENTIAL prerequisite. One could also optically- or by means of a Barlow lens- bring a telescope to a focal ratio of f\/30, but this does not mean at all that a parallel optical path is created. And mind you, a still slightly conical optical path with f\/30 sent into an etalon with 0.5 Ang FWHM would only provide the contrast as if the filter had a FWHM of 0.7 Ang or much worse.\u003cbr\u003e\u003cbr\u003eIt doesn't have to be a TZ-4. The 2\" Research Grade TZ-3 Telecentric System (3x focal length) (#2459257) with 46mm clear aperture is much better in terms of optical calculation than the 20 year older TZ-4. So it makes sense for the user to start with a TZ-3 RG and rather stop down the telescope aperture to get to f\/30. This will bring out the real contrast of the chosen SolarSpectrum-filter much better than with a poorly matched system where, for example, the older TZ-4 has a smaller clear aperture than the Solar Spectrum-Etalon would require. In the long run, a newly calculated, large RG TZ-4 is in preparation- it is worth to wait for it and to get familiar with H-alpha observation with the TZ-3 first. In the end one will certainly need both systems (RG-TZ-3 and RG-TZ-4) and adjust the telescope aperture individually- as the system would require to enable an f\/ratio of f\/30 at minimum or f\/40 as optimum. \u003cbr\u003e\u003cbr\u003eOnly AFTER the H-alpha etalon you can extend the field size by reducing the f-ratio with adding the new ResearchGrade telecompressor 0.4 into the optical train.\u003cbr\u003e\u003cbr\u003eBasically- a Barlow lens has no place in an H-alpha system!\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1363070\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825042903\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eFOCAL LENGTH EXTENSION\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e3x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003efor H-alpha observation with SolarSpectrum filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBarrel, 1.25\", 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eThread, T-2 (M42 x 0,75), 1,4\"(35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_h_alpha_filter_manual_and_applications_tipps.pdf?v=1631973767\"\u003eBaader SunDancer II H-alpha Filter- Manual and Applications Tipps\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_quickstart.pdf?v=1631973766\"\u003eBaader SunDancer II- Quickstart\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eRelated Articles\u003c\/h6\u003e\n\u003ch3\u003e\n\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\" title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\"\u003eNEW: BAADER SUNDANCER II H-ALPHA FILTER- \u003c\/a\u003e\u003ca title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\" href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\" target=\"_blank\"\u003eT\u003c\/a\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\" title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\"\u003eEST REVIEW\u003c\/a\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/tips-for-choosing-an-energy-rejection-filter-for-h-alpha-observations\/\" title=\"Tips for Choosing an Energy Rejection Filter for H-alpha-Observations\" target=\"_blank\"\u003eTIPS FOR CHOOSING AN ENERGY REJECTION FILTER FOR H-ALPHA-OBSERVATIONS\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/the-benefits-of-telecentric-systems\/\" title=\"The benefits of telecentric systems\" target=\"_blank\"\u003eTHE BENEFITS OF TELECENTRIC SYSTEMS\u003c\/a\u003e\u003c\/h3\u003e","brand":"Solar Spectrum","offers":[{"title":"TZ-3S","offer_id":42460924510444,"sku":"TZ-3S","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-sundancer-ii-telecentric-system-tz-3s--0de.jpg?v=1750791103"},{"product_id":"baader-solar-continuum-filter-7-5nm","title":"Baader Solar Continuum Filter 7.5nm (540nm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eBaader 7.5 nm Solar Continuum Filter, CWL 540nm\u003c\/li\u003e\n\u003cli\u003eA must for owners of achromatic refractors. This narrowband-filter cuts the spectral range where lens optics draw sharpest and contrastiest. The Baader Solar Continuum Filter lets you use the full power of your telescope.\u003c\/li\u003e\n\u003cli\u003eEnhances contrast and reduces the effect of atmospheric turbulence (in combination with white light solar filters)\u003c\/li\u003e\n\u003cli\u003eEnormous contrast gain in monochrome photography even on apochromatic systems\u003c\/li\u003e\n\u003cli\u003eImportant note: The Solar Continuum Filter must be used ONLY with additional filtering (e.g. Baader Herschel prism or AstroSolar Safety Film)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBaader 7.5nm Solar Continuum Filter- for Visual and Photographic Observations of the Sun\u003c\/h2\u003e\n\u003cp\u003eThe Solar Continuum Filter is practically a narrow band photosphere filter for solar observation in white light. It provides the highest contrast in the photosphere of the sun. The filter works as a monochromator: suppressing the effects of the atmospheric turbulence and delivering images that are significantly sharper.\u003c\/p\u003e\n\u003cp\u003eLens systems- including those of apochromats, catadioptrics, or eyepieces- are traditionally optimized for the spectral range around 540nm, since this is where our eye has the highest sensitivity. This narrowband filter therefore blocks everything with the exception of the spectral range in which a lens optic works most sharply and with the highest contrast. The effect is greatest on achromatic lens telescopes; but there is also an effect on apochromatic telescopes, catadioptric systems, and even pure mirror systems by reducing air turbulence.\u003c\/p\u003e\n\u003cp\u003eAs a \u003cstrong\u003emonochromatic filter, it is ideal for use on monochromatic cameras\u003c\/strong\u003e and can even provide a tremendous gain on pure color systems.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/01-ND09.jpg?v=1667762944\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/01-ND09_600x600.jpg?v=1667762944\" alt=\"\" style=\"float: none;\" data-mce-fragment=\"1\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/01-ND09_600x600.jpg?v=1667762944\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/01-ND09_480x480.jpg?v=1667242085\" data-mce-style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cem\u003eZeiss AS 150\/2250 with Herschel Wedge, ND3 and ND0,9\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02-SC.jpg?v=1667762918\" target=\"_blank\"\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02-SC_600x600.jpg?v=1667762918\" style=\"float: none;\"\u003e\u003c\/em\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/02-SC_480x480.jpg?v=1667242085\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\" data-mce-fragment=\"1\" data-mce-style=\"display: block; margin-left: auto; margin-right: auto;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/02-SC_480x480.jpg?v=1667242085\"\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cem\u003eZeiss AS 150\/2250 with Herschel Wedge, ND3 and Baader 7,5 nm Solar Continuum\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith a color camera, as with deep-sky narrow-band photography, it is less effective as only the green pixels are used. Thus, although you still benefit from the improved image sharpness of the telescope that is optimized for green wavelengths (and the reduction of the influences of air turbulence), with a color camera you cannot fully exploit the better image quality compared to monochrome cameras, as you are effectively working with reduced camera resolution.\u003c\/p\u003e\n\u003cp\u003eCompared to the previous model with a 10nm half-band-width, this filter has a half-band-width of only 7.5nm, which increases the contrast even more. It thus replaces both the previous Baader 10nm Solar Continuum filter and the stacked 1.25\" filter #2458392. The single filter is so good that stacking is no longer necessary- the contrast gain of a single 7.5nm filter makes stacking unnecessary, and this performance is now also available in 2\".\u003c\/p\u003e\n\u003cp\u003eThe Baader 7.5nm Solar Continuum filter is also be included in the scope of delivery of the Cool Ceramic Herschel prism Mark II, which is in preparation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Baader 7.5 nm Solar Continuum also offers all the advantages of the CMOS-optimized Baader filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased contrast, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli\u003eReflex-BlockerTM coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life- even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003e\n\u003cstrong\u003eLife-Coat\u003c\/strong\u003e\u003cstrong\u003eTM\u003c\/strong\u003e\n\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eLimited-Lifetime-Warranty for CMOS-optimized Baader filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Baader Planetarium exclusive. Filters incorporating Baader Planetarium€™s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter. Baader Planetarium has developed Life-Coat™ using materials and processes that result in coatings which will not degrade or fail for a lifetime. Life-Coat™ coatings resist moisture, temperature extremes, and are hardened to withstand normal cleanings.\u003c\/p\u003e\n\u003cp\u003eBaader Planetarium guarantees their Life-Coat™ coatings will not peel, flake or physically degrade and will withstand repeated cleaning with fine optical cleaning equipment. The Limited Lifetime Warranty applies to the original purchaser and does not cover failure from misuse, physical damage through improper handling, or improper cleaning.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003e2961580\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003e4047825048196\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e0.06\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e535- 545 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e7.5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e540 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003eReflex-BlockerTM hard coated, planeoptically polished\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003eCMOS, Contrast Enhancement, Solar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003e2\"\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003e2961581\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003e4047825048202\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e0.06\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e535- 545 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e7.5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e540 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003eReflex-BlockerTM hard coated, planeoptically polished\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003e\u003cspan\u003eCMOS, Contrast Enhancement, Solar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 226.453px;\" class=\"label\" data-mce-style=\"width: 226.453px;\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"width: 302.547px;\" class=\"data\" data-mce-style=\"width: 302.547px;\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003c\/h6\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch","offer_id":43429757485292,"sku":"FSOL-1N","price":134.0,"currency_code":"USD","in_stock":true},{"title":"2 inch","offer_id":43429757518060,"sku":"FSOL-2N","price":223.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-75nm-solar-continuum-filter-540nm-142.jpg?v=1750791082"},{"product_id":"baader-2-cool-ceramic-safety-herschel-prism-mark-ii-visual-photo","title":"Baader 2\" Cool-Ceramic Safety Herschel Prism Mark II- (Visual \/ Photo) Now IN STOCK!","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch2\u003eVisual Version\u003c\/h2\u003e\n\u003cp\u003eBaader 2\" Cool-Ceramic Safety Herschel Prism \u003cem\u003eMark II\u003c\/em\u003e VISUAL, with Ceramic Sunseeker and 2€ ClickLock®-Clamp- visual version- incl 2\" filter ND3,0 and (\u003cem\u003eNEW\u003c\/em\u003e) 7,5 nm Solar Continuum Filter 2€, as well as Case #2452115. Now Includes Fitted Carrying Case\u003c\/p\u003e\n\u003ch2\u003ePhoto Version\u003c\/h2\u003e\n\u003cp\u003eBaader 2\" Cool-Ceramic Safety Herschel Prism \u003cem\u003eMark II\u003c\/em\u003e PHOTO with Ceramic Sunseeker and 2€ ClickLock® 2\"-photographic version- incl.4 ND-filter 2\" 0,6\/0,9\/1,8\/3,0 and (\u003cem\u003eNEW\u003c\/em\u003e) 7,5 nm Solar Continuum Filter 2€, as well as Case #2452115\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2\" wedge prism according to Herschel- one-sided Phantom Group® anti-reflective coating, with ceramic solar finder and 2\" ClickLock® eyepiece holder\u003c\/li\u003e\n\u003cli\u003eIntegrated rotation mechanism for polarizing filters- the best method for brightness adjustment in visual solar observation and solar photography in white light\u003c\/li\u003e\n\u003cli\u003eStepless brightness adjustment is made possible in combination with the optional Baader Single Polarizing Filter 2\" (#2408342, ‚¬ 72,-) and the included Neutral Density Filter. The polarizing filters are not included in the scope of delivery\u003c\/li\u003e\n\u003cli\u003eInclude the Baader 7.5 nm Solar Continuum Filter 2\" (540nm) (#2961581) with 7.5 nm half-band-width\u003c\/li\u003e\n\u003cli\u003eS58 dovetail and Safety Kerfs on the 2\" nose-piece\u003c\/li\u003e\n\u003cli\u003eNew 3-point adjustment system preset in the factory\u003c\/li\u003e\n\u003cli\u003eSturdy transport case made of ABS plastic, air sealed\u003c\/li\u003e\n\u003cli\u003eAvailable in the following versions. Please choose the version from dropdown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003col\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eBaader 2\" Cool-Ceramic Safety Herschel Prism Mark II PHOTO with Ceramic Sunseeker and 2€ ClickLock® 2\"-photographic version- incl.4 ND-filter 2\" 0,6\/0,9\/1,8\/3,0 and (NEW) 7,5 nm Solar Continuum Filter 2€, as well as Case #2452115\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBaader 2\" Cool-Ceramic Safety Herschel Prism Mark II VISUAL, with Ceramic Sunseeker and 2€ ClickLock®-Clamp- visual version- incl 2\" filter ND3,0 and (NEW) 7,5 nm Solar Continuum Filter 2€, as well as Case #2452115. \u003c\/span\u003eNow Includes Fitted Carrying Case\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eBaader 2\" Cool-Ceramic Safety Herschel prism Mark II, Visual and photographic\u003c\/h2\u003e\n\u003cp\u003eThere is no better way for uncompromising Solar Observation \/ Solar Photography in white light\u003c\/p\u003e\n\u003cp\u003eThe Baader 2\" Cool-Ceramic Safety Herschel prism features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAn integrated rotation mechanism for polarizing filters\u003c\/strong\u003e- the best method for brightness adjustment in visual solar observation and solar photography in white light. This filter rotation mechanism allows filters to be rotated steplessly in the optical path. Since the Herschel prism emits single polarized light, a stepless brightness adjustment is made possible in combination with the optional Baader Single Polarizing Filter 2\" (#2408342) and the included Neutral Density Filter. All necessary filters always remain in the Herschel prism, even when changing eyepieces!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes the Baader 7.5 nm Solar Continuum Filter 2\" (540nm) (#2961581) with 7.5 nm half-band-width\u003c\/strong\u003e for an uncompromisingly sharp solar image.\u003cbr\u003e\u003cbr\u003eHerschel prisms must always be operated with additional light attenuation filters. Every Herschel wedge needs additional neutral density filters since the reflected energy of the first surface prism (4.6%) still is a factor of 1000 too large for the human eye. All Baader Solar Diagonals are delivered with a pre-mounted ND 3.0 Baader precision 2\" light reduction filter. The photographic version includes even more ND filters for selective light attenuation when using cameras and high magnifications.\u003c\/li\u003e\n\u003cli\u003eS58 dovetail- as on the Steeltrack OAZ- for the use of the following three adapters\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eBDS 2\" Diamond Steeltrack® M48 Adapter (#2957204)\u003c\/li\u003e\n\u003cli\u003eBDS 2\" 2\" BDS Steeltrack® M68i Adapter (#2957207)\u003c\/li\u003e\n\u003cli\u003eBDS 2\" Diamond Steeltrack® T-2 Adapter (#2957202)\u003cbr\u003eto be adapted very flexibly in any beam path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe new 3-point adjustment system of the wedge\u003c\/strong\u003e, preset in the factory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Kerfs\u003c\/strong\u003e on the 2\" nose-piece\u003c\/li\u003e\n\u003cli\u003eSturdy transport \u003cstrong\u003ecase made of ABS plastic\u003c\/strong\u003e, air sealed IP67\u003c\/li\u003e\n\u003cli\u003eAvailable in two versions:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003col\u003e\n\u003col\u003e\n\u003cli\u003eBaader Safety CoolCeramic Herschel Prism 2\" Visual (#2956510V) with Baader Neutral Density Filter 2\" (ND 3.0, T=0.1%) (#2458332)\u003c\/li\u003e\n\u003cli\u003eBaader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P) with ND 3.0\/1.8\/0.9\/0.6 Neutral Density Filter.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eThe advantages of the Safety Cool-Ceramic Herschel prism\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Technology:\u003c\/strong\u003e A multiple staggered light trap made of heat protection sheets and heat-absorbing special ceramics as the end of the light trap- similar to heat tiles on the space shuttle- absorbs the radiant heat without heating the surroundings too much. The prism also remains temperature-stable for a long time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosed housing:\u003c\/strong\u003e no risk of glare or fire from the emitted sunlight, observation is possible without danger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Finder:\u003c\/strong\u003e The ceramic plate also acts as a screen for the sunlight beam. Aiming the telescope at the sun becomes very easy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClickLock Clamp:\u003c\/strong\u003e with 15° rotation you clamp every eyepiece securely- even in winter with heavy gloves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort overall length:\u003c\/strong\u003e shortening the overall length by 30 mm for the use of DSLR or Binoviewers with optional T-2 adapter Diamond Steeltrack® T-2 Adapter (#2957202) or Diamond Steeltrack® M48 Adapter (#2957204)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Holder:\u003c\/strong\u003e On the rotatable filter holder, all necessary filters are firmly installed in the housing- no danger when changing eyepieces!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness adjustment for photography:\u003c\/strong\u003e To let enough light through for photography at high magnifications, the pre-installed ND3 filter can be replaced by weaker filters (sold separately, or included with the photo version). Baader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Herschel wedge is based on the principle of using only a small part (4.6%) of the incident light for the actual observation. These 4.6% are reduced again by a factor of 1000 to a harmless level by the ND 3.0 neutral density filter, which is installed as standard in both versions. The unequally larger, high-energy part of the light falls through the housing and forms a focal point in the air outside. Even far behind this focal point, this light concentration would still be irritatingly bright and dangerous if an inexperienced observer were to accidentally (or wantonly) look into the output beam.\u003c\/p\u003e\n\u003cp\u003eTherefore, our Herschel prisms have been using light traps for years to eliminate this risk. With the closed light trap with Cool-Ceramic protection plate, observing the sun with a Herschel prism is possible without danger for private persons as well as for public institutions and schools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou do not need an additional objective solar filter in front of your refractor telescope to safely observe the sun with the Baader Cool-Ceramic Herschel prism and the built-in ND 3.0 filter!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note: Herschel prisms must not be used on Petzval systems or other telescopes that have glass in the optical path near the focal point. Multi-lens systems do not pose a problem as long as the optics are at the front of the telescope. As long as the light has not been focused (i.e., the energy has not yet concentrated at the focal point), the heat input is no greater than solar energy on a white surface in summer. Ergo, it is a long held and just as often disproved misconception that refractor optics degrade or get too hot. All refractor optics whether oil or air gap, which are distributed by the company Baader Planetarium, are absolutely able to make solar observations by means of Herschel prism. The oils used are all UV resistant. (However, we can only speak here for the products of the brands we know- if necessary, refer to the manual of your telescope to see if it is suitable for solar projection).\u003c\/p\u003e\n\u003cp\u003eEspecially interesting is solar observation with a large aperture telescope like a Triband-SCT- Schmidt-Cassegrain-based Multi-Purpose-Telescope, for Sun and Deep Sky (various versions available)- the Schmidt corrector equipped with an energy protection filter allows to use telescopes up to 11\" aperture also for solar observation with a Herschel prism!\u003c\/p\u003e\n\u003ch2\u003eTechnical details:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTelescope side connection options (included as standard):\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e2\" (50.8 mm) nosepiece with safety groove and M48 filter thread\u003c\/li\u003e\n\u003cli\u003eDovetail ring (ring groove) S58 x 3.7mm, e.g. for connection to Zeiss M68 and other Baader connection standards with optional adapters\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eEyepiece side connection options (included as standard):\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e2\" (50.8 mm) Clicklock clamp with brass clamping ring\u003c\/li\u003e\n\u003cli\u003eDovetail ring (ring groove) S58 x 3.7mm, as on SteelTrack focuser\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eHousing: Die-cast aluminum; milled; matte black anodized; pearl white textured finish\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003ePhoto\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"25%\"\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2956510P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825051974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DESIGN\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eHerschel Prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eThread, M48, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBarrel, Dovetail ring, S58, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eClamp, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eThread, Dovetail ring, S58, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eREFLECTION SURFACE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eFirst surface reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eIMAGE ORIENTATION\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eErect image, Mirror inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCLAMPING SYSTEM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eVisual\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2956510V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825051967\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOPTICAL DESIGN\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eHerschel Prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eThread, M48, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBarrel, Dovetail ring, S58, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINNER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eClamp, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eThread, Dovetail ring, S58, 2\" (50,8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eREFLECTION SURFACE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eFirst surface reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ePhantom Coating® Group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eIMAGE ORIENTATION\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eErect image, Mirror inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCLAMPING SYSTEM\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instruction_manual_and_application_examples_b387d8a0-1425-4e9c-9a2d-a97992d4756e.pdf?v=1710436264\"\u003e\u003cb\u003eInstruction Manual and Application Examples\u003c\/b\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eRelated Articles\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/alpineastro.com\/blogs\/blog\/the-baader-2-cool-ceramic-safety-herschel-prism-mark-ii\"\u003eThe Baader 2\" Cool-Ceramic Safety Herschel Prism Mark II»¿\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Visual","offer_id":43429990301932,"sku":"HERSCH-VII","price":660.0,"currency_code":"USD","in_stock":true},{"title":"Photo","offer_id":43429990334700,"sku":"HERSCH-PII","price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader-2-cool-ceramic-safety-herschel-prism-mark-ii-visual-photo-68a.jpg?v=1750791081"},{"product_id":"h-alpha-bandpass-filter-20-nm","title":"H-alpha Bandpass Filter (20 nm)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eH-alpha filter with 20 nm FWHM (CWL 656.3 nm), thus excellently suited for visual use at night- and photographically with CCD and CMOS cameras at telescopes with all f-ratios. \u003cstrong\u003eWarning: this filter alone is not suitable for direct viewing of the sun!\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWith new, highly effective UV\/IR block coating from 300 nm to 1400 nm\u003c\/li\u003e\n\u003cli\u003eSimilar to the Super G filter in O III, the 20 nm H-alpha filter is an outstanding high-contrast deep-sky H-alpha\/red filter for RGB applications, optimised for all colour CCD and CMOS chips. It enables high-contrast images of H-II regions (e.g. North America nebulae) even from light-polluted environments.\u003c\/li\u003e\n\u003cli\u003eFront-Reflex-BlockerTM hard coated and planeoptically polished- with sealed coating edges (Life-Coat™)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eH-alpha Bandpass-Filter (20 nm)\u003c\/h2\u003e\n\u003cp\u003eThis 20nm filter replaces the former 35nm H-alpha filter, which was developed for interline CCD cameras. Due to advances in sensor technology, now much narrower filters can be used with colour sensors.\u003c\/p\u003e\n\u003cp\u003eCompared to the CMOS-optimized Baader (Ultra) Narrowband Filters, the 20 nm H-alpha filter passes considerably more light. This makes the stars in the image brighter, allowing easier focusing, and the filter can be used at all focal ratios: There is no need for preshifting as with narrow band filters. This filter is especially interesting for users of colour cameras (which are less sensitive to red than monochrome cameras) who do not need extreme narrowband filters and want to enrich their colour images with H-alpha. At the same time this filter is a valid alternative to a standard R-filter of the RGB-scheme. It blocks much more of deteriorating light pollution and still passes all H-alpha for all focal ratios.\u003c\/p\u003e\n\u003cp\u003eA notable difference to all H-alpa pass filters on the market is the fact that this filter does include highly efficient UV\/IR blocking. being completely blocked out to 1400 nm, to eliminate blurring (\"heat-noise\") caused by defocused light on refractor optics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Baader H-alpha Bandpass Filter also offers all the advantages of the CMOS-optimized Baader filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased contrast, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli\u003eReflex-BlockerTM coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life- even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003e\n\u003cstrong\u003eLife-Coat\u003c\/strong\u003e\u003cstrong\u003eTM\u003c\/strong\u003e\n\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eLimited-Lifetime-Warranty for CMOS-optimized Baader filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Baader Planetarium exclusive. Filters incorporating Baader Planetarium€™s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter. Baader Planetarium has developed Life-Coat™ using materials and processes that result in coatings which will not degrade or fail for a lifetime. Life-Coat™ coatings resist moisture, temperature extremes, and are hardened to withstand normal cleanings.\u003c\/p\u003e\n\u003cp\u003eBaader Planetarium guarantees their Life-Coat™ coatings will not peel, flake or physically degrade and will withstand repeated cleaning with fine optical cleaning equipment. The Limited Lifetime Warranty applies to the original purchaser and does not cover failure from misuse, physical damage through improper handling, or improper cleaning.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2961850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e4047825053824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e0.06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eH-alpha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e20nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e656,3 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eCMOS, CCD, H-alpha, IR-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e2\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2961853\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e4047825053831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e0.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eH-alpha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e20nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e656,3 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eReflex-BlockerTM hard coated, dielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eCMOS, CCD, H-alpha, IR-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003cbr\u003e\u003c\/h6\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch","offer_id":43793149985004,"sku":"FHALW-1","price":115.0,"currency_code":"USD","in_stock":true},{"title":"2 inch","offer_id":43793150017772,"sku":"FHALW-2","price":201.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/h-alpha-bandpass-filter-20-nm-58d.jpg?v=1750791068"},{"product_id":"o-iii-super-g-filter-9nm-cmos-optimized","title":"O-III Super-G Filter (9nm)- CMOS optimized","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eO-III Super-G filter with 9 nm FWHM and a maximum transmission of 97%.\u003cbr\u003eFor visual and photographic observation of planetary nebulae and supernova remnants, even with small telescopes\u003c\/li\u003e\n\u003cli\u003eCan be used as a \"Super-G filter\" replacement for RGB photography. While regular G-filters suffer from bad seeing due to air turbulences, the narrow range of 9 nm passes less thermal noise, i.e. sharper images. Nevertheless, the transmission window is large enough not to be considered a pure narrowband filter.\u003c\/li\u003e\n\u003cli\u003eCMOS-optimized coating technology with much steeper slopes of the filter passband- for increased contrast, longer life and to avoid reflections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBaader O-III Super-G Filter, 1.25\" and 2\"\u003c\/h2\u003e\n\u003cp\u003eThe new Baader O-III filter is designed for deep sky visual observing and photographing those gas nebulae in which doubly ionized oxygen fluoresces. It is superb for for planetary nebulae, supernova remnants, and many large emission nebula. With a FWHM of only 9 nm and equipped with the CMOS-optimized coating technology, it darkens the sky background, blocking stray light much better than its 10 nm predecessor (Baader (10nm) O-III Filter visual) for outstanding visual contrast on a large number of nebula. But the narrower FWHM is not the most important improvement. More important is the significantly better blocking aside of the O-III wavelength, as well as even steeper transmission slopes and a broad plateau in the transmission range. With a transmission of 97% for the emission line at 500.7 nm, practically all the light of the nebula passes through the filter. At the same time, this filter can be used photographically for practically any focal ratio from f\/1.8 to f\/12 without passing any light of the H-beta line. This makes the Super-G filter just as ideal for use in areas with high light pollution.\u003c\/p\u003e\n\u003ch3\u003ePhotographic use\u003c\/h3\u003e\n\u003cp\u003eThe 9 nm O-III filter can be excellently used photographically on all telescopes, especially with a DSLR or an astronomical OSC colour camera. It offers all the advantages of the CMOS-optimized Baader filters such as Reflex-BlockerTM coating against reflections, plano-optical polishing and age-resistant Life-Coat™ coating. For monochrome cameras, we recommend the even stronger Narrowband (6,5 nm) and Ultra-Narrowband (4 nm) filters, which are available specially adapted for different aperture ratios. For this comparatively broadband 9 nm filter, pre-shifting is not necessary at focal ratios faster than f\/4, thus it can be used at all focal ratios.\u003c\/p\u003e\n\u003ch3\u003eSuper-G filter\u003c\/h3\u003e\n\u003cp\u003eThe filter has the same thickness as the 1.25\"\/2\" Baader LRGB filters. This makes it suitable for use as a \"super G filter\": In the transmission range of the normal green filter (490-580nm) there are no emission lines other than OIII; H-Beta at 486 nm is already covered by the RGB blue filter. So, when using the 9 nm O-III filter instead of the standard RGB green filter, emission nebulae are consequently emphasised much more strongly, while the stars appear fainter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe Baader O-III Super-G Filter (9nm) also offers all the advantages of the CMOS-optimized Baader filters:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased contrast, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli\u003eReflex-BlockerTM coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life- even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003e\n\u003cstrong\u003eLife-Coat\u003c\/strong\u003e\u003cstrong\u003eTM\u003c\/strong\u003e\n\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eLimited-Lifetime-Warranty for CMOS-optimized Baader filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Baader Planetarium exclusive. Filters incorporating Baader Planetarium€™s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter. Baader Planetarium has developed Life-Coat™ using materials and processes that result in coatings which will not degrade or fail for a lifetime. Life-Coat™ coatings resist moisture, temperature extremes, and are hardened to withstand normal cleanings.\u003c\/p\u003e\n\u003cp\u003eBaader Planetarium guarantees their Life-Coat™ coatings will not peel, flake or physically degrade and will withstand repeated cleaning with fine optical cleaning equipment. The Limited Lifetime Warranty applies to the original purchaser and does not cover failure from misuse, physical damage through improper handling, or improper cleaning.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\" data-mce-fragment=\"1\"\u003e\n\u003ccolgroup data-mce-fragment=\"1\"\u003e \u003ccol width=\"25%\" data-mce-fragment=\"1\"\u003e \u003ccol data-mce-fragment=\"1\"\u003e \u003c\/colgroup\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2961550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e4047825048172\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e0.06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eO-III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e9nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e502 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eReflex-BlockerTM hard coated, dielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eCMOS, Contrast Enhancement, O-III, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch2\u003e2\"\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\" data-mce-fragment=\"1\"\u003e\n\u003ccolgroup data-mce-fragment=\"1\"\u003e \u003ccol width=\"25%\" data-mce-fragment=\"1\"\u003e \u003ccol data-mce-fragment=\"1\"\u003e \u003c\/colgroup\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2961551\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e4047825048189\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e0.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eO-III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e9nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e502 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eReflex-BlockerTM hard coated, dielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eCMOS, Contrast Enhancement, O-III, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch6\u003e\u003cbr\u003e\u003c\/h6\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch","offer_id":43793175773420,"sku":"FOIIISG-1","price":108.0,"currency_code":"USD","in_stock":true},{"title":"2 inch","offer_id":43793175806188,"sku":"FOIIISG-2","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/o-iii-1-1-4-super-g-filter-9nm-cmos-optimized-ea9.jpg?v=1750791067"},{"product_id":"baader-calcium-gen-ii-1-with-lpfc","title":"Baader Calcium GEN-II 1.25\" with LPFC","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eSingle filter (unstacked!), shows finest solar details in calcium K (Cak) lightFor solar photography only in combination with enclosed AstroSolar photo film ND3.8 or an Herschel prism (sold seperately: Baader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P)\u003c\/li\u003e\n\u003cli\u003eEnhanced contrast matched to quantum efficiency and s\/n ratio of typical CMOS cameras.\u003c\/li\u003e\n\u003cli\u003eReflex-BlockerTM coatings, for maximum immunity to retro-reflection from nearest auxiliary optics, even under the most adverse conditions\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for homofocality\u003cbr\u003eReflex-BlockerTM hard coated and planeoptically polished- with sealed coating edges (Life-Coat™)\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim\u003c\/li\u003e\n\u003cli\u003eSupplied with AstroSolar photo film ND 3.8, size: 200 x 290 mm- for pre-filtering sunlight\u003c\/li\u003e\n\u003cli\u003eThe calcium filter Gen-II must NOT be used in the light path WITHOUT pre-filtering.\u003c\/li\u003e\n\u003cli\u003eVisual observation is not possible with the calcium filter, as the eye is practically blind in this part of the spectrum. Never point the telescope directly at the sun with only the calcium filter (without an additional attenuation filter).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCalcium GEN-II Filter 1.25\" with Low Profile Filtercell\u003c\/h2\u003e\n\u003cp\u003eThe calcium GEN-II filter lets you observe the interesting border region between the photosphere, which is visible in white light, and the chromosphere of the sun, which is reserved for narrow-band H-alpha filters. In addition to the structures known from white light, such as sunspots, you can see the chromospheric network distributed over the entire surface of the sun, which precedes the formation of sunspots, as well as cells of supergranulation and Ellerman Bombs.\u003c\/p\u003e\n\u003cp\u003eThe emission line of calcium at 394 nm is already in the near UV. That's why observing the sun at this wavelength is only possible with a camera! Never use this filter for visual observations, as our eye is blind for the harmful UV-radiation, but can be damaged by it.\u003c\/p\u003e\n\u003cp\u003eThis filter delivers the best results when used with a monochrome camera (which is more sensitive in this part of the spectrum than a colour camera) and mirror telescopes (because especially refractors with fast f\/ratios are not optimized for best sharpness in this part of the spectrum). Nevertheless, many lens telescopes still work fine for calcium observations; unmodified DSLRs may need extremely long exposure times.\u003c\/p\u003e\n\u003cp\u003eAll calcium-filters require an additional solar filter in front of them. Part of the Baader GEN-II is a sheet of AstroSolar Photo Film OD 3.8, 20x30 cm (#2459278) to build a solar filter by yourself, so that you can start observing without purchasing any other filters. Of course, you can also use one of the BDSF: Baader Digital Solar Filter OD 3.8 (80mm- 280mm) which are already mounted in a filter cell. On suitable lens telescopes, you can also use a Herschel prism. That way, you can replace the integrated ND3-filter mounted behind the Herschel with a weaker filter to reach shorter exposure times. These filters are already in the scope of delivery of the Baader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P).\u003c\/p\u003e\n\u003cp\u003eThe calcium GEN-II replaces the older K-Line Filter 1.25\" (stacked) # 2458355. Thanks to modern manufacturing techniques, a single filter now achieves a better quality and narrower half-band width (FWHM) of only 5 nm instead of the previous 8 nm; stacking two filters is now no longer necessary. This also makes it possible to use the filter in standard filter wheels\/drawers; the low-profile filter mount is only 6 mm high when screwed in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Baader Calcium GEN-II also offers all the advantages of the CMOS-optimized Baader filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased contrast, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli\u003eReflex-BlockerTM coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life- even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Baader Calcium GEN-II at ED 80\/600\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02A-ED80-f7-5-Herschel-ND18-2961590A-01_480x480.jpg?v=1682191292\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02A-ED80-f7-5-Herschel-ND18-2961590A-01_480x480.jpg?v=1682191292\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cem\u003eBaader Calcium GEN-II at ED 80\/600\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cimg alt=\"Baader Calcium GEN-II at 80\/910 Fraunhofer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02A-Vixen-80-f11-Herschel-ND18-2961590A-02_480x480.jpg?v=1682191320\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/02A-Vixen-80-f11-Herschel-ND18-2961590A-02_480x480.jpg?v=1682191320\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cem\u003eBaader Calcium GEN-II at 80\/910 Fraunhofer\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003eTo use the 1.25\"-filter at cameras with 2\"-nosepiece, you can use either use a filter drawer like the Baader UFC System or a filter wheel. You can always use the filter thread of many barlow lenses as well as 1.25\" nose pieces like Baader 1.25\" T-2 nosepiece with Safety Kerfs (#2458106). You can mount it between two parts with T-2-threads by combining Baader Double T-Filterholder 1.25\" (#1508030) and Baader T-2Conversion Ring (#2958110) ; for cameras with a 2\" filter thread, you also need Baader Expanding Ring T-2f \/ M48m (T-2 part #29) (#2458110.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLimited-Lifetime-Warranty for CMOS-optimized Baader filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Baader Planetarium exclusive. Filters incorporating Baader Planetarium€™s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter. Baader Planetarium has developed Life-Coat™ using materials and processes that result in coatings which will not degrade or fail for a lifetime. Life-Coat™ coatings resist moisture, temperature extremes, and are hardened to withstand normal cleanings.\u003c\/p\u003e\n\u003cp\u003eBaader Planetarium guarantees their Life-Coat™ coatings will not peel, flake or physically degrade and will withstand repeated cleaning with fine optical cleaning equipment. The Limited Lifetime Warranty applies to the original purchaser and does not cover failure from misuse, physical damage through improper handling, or improper cleaning.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch2\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr class=\"first odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e2961590\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e4047825048783\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e0.108\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eCaK-II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eHBW (HALFBANDWIDTH)\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e394 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003edielectrically coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eonly for photographic use behind another solar filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eSolar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eNarrowband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last even\" data-mce-fragment=\"1\"\u003e\n\u003cth class=\"label\" data-mce-fragment=\"1\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data last\" data-mce-fragment=\"1\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\u003cbr\u003e\u003c\/h6\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/faq_problems_with_filters_can_have_the_strangest_causes.pdf?v=1590138683\"\u003eFAQ- Problems with filters can have the strangest causes\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1 25 inch","offer_id":43793196155116,"sku":"CaKII","price":335.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/baader-calcium-gen-ii-1-1-4-with-lpfc-cf1.jpg?v=1750791066"},{"product_id":"baader-sundancer-ii-telecentric-system-tz-4s","title":"Baader SunDancer II Telecentric System TZ-4S","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/sundancer-logo_480x480.jpg?v=1631973611\"\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eBaader SunDancer II 4x Telecentric System TZ-4S\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDelivers a plane-parallel, achromatic beam of light with 36 mm diameter\u003c\/li\u003e\n\u003cli\u003eDesigned especially for H-alpha and CaK subangstroem etalon filters\u003c\/li\u003e\n\u003cli\u003eIncludes a 1„2\" filter cell for the 2 nm block filter of the Baader SunDancer II H-alpha filter\u003c\/li\u003e\n\u003cli\u003eCan also be used in place of a Barlow lens, expands the telescope focal length by 4x\u003c\/li\u003e\n\u003cli\u003eBBAR (Broad-Band Anti-Reflection) coating\u003c\/li\u003e\n\u003cli\u003eAnti-reflective thread and blackened lens edges against reflections and for maximum contrast\u003c\/li\u003e\n\u003cli\u003eImage circle 36 mm, in a nominal in 97 mm from base of the T-2 thread\u003c\/li\u003e\n\u003cli\u003e1.25\" and 2\" nosepiece with 1.25\" filter thread, T-2 thread on camera side\u003c\/li\u003e\n\u003cli\u003e12.5 mm (1\/2\") filter exchange tool included\u003c\/li\u003e\n\u003cli\u003e5-year warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cem\u003eImportant note: We deliver the SunDancer II H-alpha only with TZ-3S. An alternative cover with TZ-4S is unfortunately not possible.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTelecentric systems are mainly used in H-alpha filters for solar observation, where the 1\/100 lambda plane-parallel etalon in the H-alpha filter requires a perfectly parallel beam of light over the entire image. These telecentric systems deliver very sharp images, but are usually only optimised for the H-alpha wavelength.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003eachromatic SunDancer 4x telecentric\u003c\/strong\u003e is designed for the entire visible spectrum and can therefore not only be used on \u003cstrong\u003eH-alpha systems\u003c\/strong\u003e, but the TZ-4S, as well as the Baader SunDancer II Telecentric System TZ-3S can also be used \u003cstrong\u003einstead of a Barlow lens\u003c\/strong\u003e. Due to the parallel beam of light, it is very good-natured with regard to the working distance: While the magnification factor of a Barlow lens changes with the distance to eyepiece or camera (zoom eyepieces are also based on this principle), the magnification factor and image quality of the TZ-4 do not change, even if the camera or eyepiece is mounted well behind the nominal working distance (97 mm from the base of the T-2-thread).\u003c\/p\u003e\n\u003cp\u003eThe achromatic SunDancer II TZ-4S illuminates an \u003cstrong\u003eimage circle of 36 mm\u003c\/strong\u003e at a distance of 97 mm from the base of ther T-2-thread. The contrast is better than with the common methods used for higher magnifications: simple barlow lenses or eyepiece projection. With the 4x telecentric system, high magnifications for observing the solar system can be achieved even with long focal length orthoscopic eyepieces. The eye relief of the eyepieces used does not change, too! The focus position changes only 3 mm outward when using the 2\" nosepiece of the telecentric, compared to a 2\" eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003econnection on the telescope side\u003c\/strong\u003e is made via a dual 1.25\"\/2\" nosepiece with safety kerfs (these prevent tilting due to an incorrectly positioned safety groove and at the same time provide a secure hold). On the camera side, the T-2 thread provides a tilt-proof, fixed connection even to heavy cameras or to T-2 eyepiece clamps. For the T-2 thread, adapter rings are available for almost all common connection systems (e.g. M48 \/ 2\"\/ M68).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe TZ-4S in use with H-alpha-Filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe TZ-4S was specially designed for the Baader SunDancer II H-alpha Filter and replaces the original 3x telecentric. This allows to use the SunDancer II H-alpha filter also on telescopes with f\/7-f\/8 with the optimal focal ratio of about f\/30. Please note: For this, the 12 mm 2 nm H-alpha blocking filter, which is pre-installed in the front of the TZ-3S, must be installed in the TZ-4S. This blocking filter is not available separately. The ideal working distance when using the SunDancer II is then 70 mm from the base of the T-2 thread of the SunDancer II H-alpha filter (instead of 65 mm with the original TZ-3S).\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"To use the TZ-4S with the SunDancer II H-alpha filter (left), the shiny block filter must be removed from the TZ-3S (with red label) and inserted into the TZ-4S.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/TZ-4S_TZ-3S_480x480.jpg?v=1690135059\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eTo use the TZ-4S with the SunDancer II H-alpha filter (left), the shiny block filter must be removed from the TZ-3S (with red label) and inserted into the TZ-4S.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFor H-alpha filters with up to 36 mm diameter with their own block and energy protection filter (e.g. SolarSpectrum filter), the TZ-4S can be used instead of the long-building Telecentric System TZ-4 (4x focal length)\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Clear Aperture Comparison\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/comparison-aperture-tz3s-tz4s_480x480.jpg?v=1690135106\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eThe SunDancer II Telecentrics\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBaader SunDancer II Telecentric System TZ-3S (#1363070) with gold anodized label: Achromatic 3x telecentric with 95 mm working distance from the base of the T-2 thread and 27.5mm clear aperture. Provides the desired focal ratio of f\/30 on telescopes with f\/10. This telecentric is also available without the SunDancer II H-alpha filter, but then only without the 2 nm block filter of the H-alpha filter. For clear identification, this telecentric has a gold-colored anodized banderole.\u003c\/li\u003e\n\u003cli\u003eTZ-3S with 2nm block filter and red anodized label: Achromatic 3x telecentric of the Baader SunDancer II H-alpha Filter (#1363056) is equivalent to the Baader SunDancer II 3x Telecentric TZ-3S, but additionally contains a 2nm (FWHM) block filter. It shimmers golden when you look into the SunDancer from the telescope side. This block filter is mandatory to protect the actual H-alpha filter from solar radiation. For clear identification, this telecentric has a red anodized band, otherwise identical to the Baader SunDancer II Telecentric System TZ-3S (#1363070). Please note: We deliver the SunDancer II only with TZ-3S. An alternative cover with TZ-4S is unfortunately not possible.\u003c\/li\u003e\n\u003cli\u003eBaader SunDancer II Telecentric System TZ-4S (#1363080) with violet anodized label: Achromatic 4x telecentric with 97 mm working distance from the base of the T-2 thread and 36mm clear aperture. Provides the desired focal ratio of f\/30 on telescopes with f\/7.5. For clear identification, this telecentric has a violet anodized label. This telecentric does not include the 2 nm blocking filter of the H-alpha filter; for use with the SunDancer II, the 2 nm block filter must be converted from the TZ-3S of the SunDancer II filter to the TZ-4S. The use with large SolarSpectrum H-alpha filters with already integrated block filter and additional energy protection filter is possible without this additional 2 nm block filter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe blocking filter reflects the sunlight just before the etalon and the telecentric system. This protects the etalon from excessive heat. In addition, an etalon also transmits wavelengths that are a multiple of the desired transmission line; these are also stopped by the blocking filter, too. The blocking filter or the TZ-3S with pre-installed blocking filter are not available separately.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/alpineastro.com\/products\/baader-sundancer-ii-telecentric-system-tz-3s\" target=\"_blank\"\u003e\u003cimg alt=\"The 3x-Telecentric TZ-3S without block filter, recognizable by the gold-colored ring\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/1363090_sundancer-2_telezentrik_480x480.jpg?v=1690135251\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eThe 3x-Telecentric TZ-3S without block filter, recognizable by the gold-colored ring\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003e\u003cimg alt=\"The 3x-Telecentric with integrated block filter is only available together with the SunDancer II H-alpha filter. Here the block filter of the SunDancer II is pre-installed, the version is recognizable by the red ring.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/1363056_sundancer-2_a-alpha-filter_1_480x480.jpg?v=1690135285\"\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eThe 3x-Telecentric with integrated block filter is only available together with the SunDancer II H-alpha filter. Here the block filter of the SunDancer II is pre-installed, the version is recognizable by the red ring.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cimg alt=\"The 4x-Telecentric TZ-4S without block filter, recognizable by the violet ring\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/Baader_SunDancer_TZ_4S_480x480.jpg?v=1690135306\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cspan\u003eThe 4x-Telecentric TZ-4S\u003c\/span\u003e\u003cbr\u003ewithout\u003cspan\u003e block filter, recognizable by the\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eviolet ring\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch6\u003eImportant Note\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eTZ-optical systems are essential for undeteriorated performance of heated SolarSpectrum filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note that for H-alpha observations below 1 Ang halfbandwidth (FWHM) a telecentric lens system is absolutely mandatory, in order to achieve the recommended focal ratio of f\/30 to (preferably) f\/40! Because only with a telecentric approach you can create a perfectly parallel optical path which is essential for the unrestricted function of such a complicated etalon.\u003c\/p\u003e\n\u003cp\u003eA TZ-lens-system is an ESSENTIAL prerequisite. One could also bring a telescope to a focal ratio of f\/30, but this does not mean at all that a parallel optical path is created. And mind you, a still slightly conical optical path with f\/30 sent into an etalon with 0.5 Ang FWHM would only provide the contrast as if the filter had a FWHM of 0.7 Ang or much worse.\u003c\/p\u003e\n\u003cp\u003eThe main difference between TZ-4S and the older TZ-4 are adaptation to the telescope (the TZ-4 uses T-2-threads for a stable connection- perfect for the long SolarSpectrum filters) and their working distance. The free apertureof the TZ-4S is comparable with about 35 mm and does not fully illuminate the largest SolarSpectrum filters with 46 mm filter diameter. But it doesn't always have to be a TZ-4. The 2\" Research Grade TZ-3 Telecentric System (3x focal length) (#2459257) with 46mm clear aperture is much better in terms of optical calculation than the 20 year older TZ-4. So it makes sense for the user to start with a TZ-3 RG and rather stop down the telescope aperture to get to f\/30. This will bring out the real contrast of the chosen SolarSpectrum-filter much better than with a poorly matched system where, for example, the older TZ-4 has a smaller clear aperture than the Solar Spectrum-Etalon would require. In the long run, a recalculated, large RG TZ-4 is in preparation- it is worth to wait for it and to get familiar with H-alpha observation with the TZ-3 first. Later, one will surely need both systems (RG-TZ-3 and RG-TZ-4) and will have to stop down the telescope aperture as needed.\u003c\/p\u003e\n\u003cp\u003eOnly AFTER the H-alpha etalon you can extend the field size by reducing the f-ratio with adding the new ResearchGrade telecompressor 0.4 into the optical train.\u003c\/p\u003e\n\u003cp\u003eBasically- a Barlow lens has no place in an H-alpha system!\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825052124\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1363080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eظ 1.25\" (31.75 mm), ظ 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eIMAGE FIELD\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eFOCAL LENGTH EXTENSION\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003efor H-alpha observation with SolarSpectrum filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last even\"\u003e\n\u003cth class=\"label\"\u003eBACKFOCUS\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e97 mm ab dem Gewindeboden des T-2-Gewindes (Bei Verwendung mit Baader SunDancer II H-alpha-Filter: 70 mm ab dem T-2-Gewindeboden des H-alpha-Filters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_h_alpha_filter_manual_and_applications_tipps.pdf?v=1631973767\"\u003eBaader SunDancer II H-alpha Filter- Manual and Applications Tipps\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_quickstart.pdf?v=1631973766\"\u003eBaader SunDancer II- Quickstart\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_h_alpha_filter_manual_and_applications_tips.pdf?v=1775755545\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/moving_the_blocking_filter_from_the_tz_3s_of_the_sundancer_ii_h_alpha_filter_into_the_tz_4s.pdf?v=1690135789\"\u003eMoving the blocking filter from the TZ-3S of the SunDancer II H-alpha-Filter into the TZ-4S\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_sundancer_ii_telezentrisches_system_tz_4s.pdf?v=1690135789\"\u003eBaader SunDancer II Telezentrisches System TZ-4S\u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eRelated Articles\u003c\/h6\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/field-report-baader-sundancer-ii-telecentric-system-tz-4s\/\" target=\"_blank\"\u003eFIELD REPORT: BAADER SUNDANCER II TELECENTRIC SYSTEM TZ-4S\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/focus-on-the-sun-can-the-baader-sc-triband-replace-a-large-refractor\/\" target=\"_blank\"\u003eFOCUS ON THE SUN: CAN THE BAADER SC-TRIBAND REPLACE A LARGE REFRACTOR?\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/first-class-h-alpha-solar-filter-by-solar-spectrum\/\" target=\"_blank\"\u003eFIRST CLASS H-ALPHA SOLAR FILTERS BY SOLARSPECTRUM\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/solar-imaging-with-the-tec-140-f-4-fluorite-apochromat\/\" target=\"_blank\"\u003eSOLAR IMAGING WITH THE TEC 140 F\/7 FLUORITE APOCHROMAT\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\n\u003ca title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\" href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\"\u003eBAADER SUNDANCER II H-ALPHA FILTER- \u003c\/a\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\" title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\" target=\"_blank\"\u003eT\u003c\/a\u003e\u003ca title=\"NEW: Baader SunDancer II H-Alpha Filter- Test Review\" href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/test-review-baader-sundancer-ii-h-alpha-filter\/\"\u003eEST REVIEW\u003c\/a\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003ca title=\"Tips for Choosing an Energy Rejection Filter for H-alpha-Observations\" href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/tips-for-choosing-an-energy-rejection-filter-for-h-alpha-observations\/\" target=\"_blank\"\u003eTIPS FOR CHOOSING AN ENERGY REJECTION FILTER FOR H-ALPHA-OBSERVATIONS\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003ca title=\"The benefits of telecentric systems\" href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/the-benefits-of-telecentric-systems\/\" target=\"_blank\"\u003eTHE BENEFITS OF TELECENTRIC SYSTEMS\u003c\/a\u003e\u003c\/h3\u003e","brand":"Solar Spectrum","offers":[{"title":"TZ-4S","offer_id":43896713511148,"sku":"TZ-4S","price":481.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader-sundancer-ii-telecentric-system-tz-4s--8af.jpg?v=1750791054"},{"product_id":"triband-sct-schmidt-cassegrain-based-multi-purpose-telescope-for-sun-and-deep-sky","title":"Triband-SCT- Schmidt-Cassegrain-based Multi-Purpose-Telescope, for Sun and Deep Sky","description":"\u003cp\u003eGet ready for the 2024 Solar Eclipse!\u003cbr\u003e\u003c\/p\u003e\n\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eTriband-SCT's are available in apertures of 8\", 91„4\" and 11\".\u003c\/li\u003e\n\u003cli\u003eTriband-ERF-coated Schmidt corrector plate replaces an additional ERF energy rejection filter and makes high-resolution observations of the sun possible\u003c\/li\u003e\n\u003cli\u003eThe Triband-ERF Schmidt corrector plate has got transmission windows between 380 and 400 nm, 480 and 515nm as well as 630 and 680 nm. The transmission windows are designed for Calcium-K, Continuum (incl H-beta and O III), H-alpha and S II.\u003c\/li\u003e\n\u003cli\u003eFor observing the sun in white light, H-alpha or CaK or for Narrowband-Deep-Sky-applications, further filters are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSize matters- even for solar observing!\u003c\/h2\u003e\n\u003cp\u003eThere are many small, nice telescopes available which are great for a quick look at the sun in H-alpha or CaK, but who wants to observe always only with a \"finderscope\"? To see faint details, you need aperture and focal length. The groundbreaking Baader Triband-SCTs have got the energy rejection filter (ERF)- which is necessary for the SolarSpectrum CaK and H-alpha filters- already integrated into the Schmidt corrector plate. Especially in IR, the Triband Schmidt corrector is blocked down to 1450nm, so that the telescope will not heat up. So, you do not need an additional large and precisely polished ERF, and you can use the full optical quality of the Schmidt corrector. Additional rear-ventilated heat shields in front of tube and secondary mirror also keep the tube from heating up by the sun's radiation. This way, you can use the full resolution which is available at your location. With videography it is possible to achieve extremely high-resolution detail images of the sun. And you can do this at three wavelengths- not only in H-alpha!\u003c\/p\u003e\n\u003cp\u003eThe system is also great for visual observations- the sun will impress you more than ever in those moments when the seeing is good. Please note that a Triband SCT is no grab-and-go-telescope: Smaller telescope with less magnification will show nice images even at poorer seeing conditions, but a high-end telescope which pushes everything to its limits also requires a proper location. Make sure that your surroundings don't cause bad local seeing- only then you can take the telescope to its limits! The Triband-SCTs are based on Celestron's Schmidt-Cassegrains, a well-tried and reliable no-frills telescope system.\u003c\/p\u003e\n\u003cp\u003eUnlike pure H-alpha-telescopes, you can use the Triband-SCT even at night: The coating is permeable for CaK, H-Beta,O-III, H-alpha and S-II, so that you can use the telescope fully for narrowband- or Ultra UHC-photography- be it with the original f\/10, at night with a reducer at f\/7 or even with a Hyperstar-system at f\/2. You can even use UV-filters (Baader U-Venus-filter) or IR-pass-filters and achieve a surprisingly good contrast. The SC optical system suffers much less from chromatic aberration over a much broader spectral range than the best apochromatic lens telescopes. This makes the Baader-Triband-Schmidt-Cassegrains the most versatile CaK and H-alpha-telescopes on the market.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/triband-sct_spectral-curve.jpg?v=1700301283\"\u003e\u003cimg alt=\"Triband SCT Spectral Curve\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/triband-sct_spectral-curve_480x480.jpg?v=1700301283\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eTriband SCT- Multi-purpose telescopes for professional applications\u003c\/h3\u003e\n\u003cp\u003eThe Triband-SCs with Triband-ERF-coated Schmidt-corrector were designed on the base of the time-tested Celestron Schmidt-Cassegrain (SC) telescopes. They are the perfect telescopes for both high-resolution H-alpha solar observations and narrowband deep-sky photography.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize matters- even for solar observing!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Triband-coating is an Energy Rejection Filter for observing the sun, which does not interfere with narrowband deep-sky observations. Heat shields avoid heating ob of the telescope.\u003c\/p\u003e\n\u003cp\u003eIt is a common misconception that small telescopes are sufficient for observing the sun as high magnifications can rarely be used at daytime\u003c\/p\u003e\n\u003cp\u003eThe nice little H-alpha and CaK telescopes which are quite common nowadays are great for a quick look at the sun and to see the complete solar disk; but if you want to see fine details, you need aperture and focal length to make use of those moments when the seeing is perfect.\u003c\/p\u003e\n\u003cp\u003eThe groundbreaking Baader Triband-SCTs have got an Energy Rejection Filter (ERF)- which is necessary for the SolarSpectrum CaK and H-alpha filters- already integrated into the Schmidt corrector plate. You don't have to pay the additional costs for an Energy Rejection Filter (ERF), which would be \"astronomical\" for telescopes between 8 and 11 inch. With its Triband-coating, the telescope is still perfectly fitted for narrowband deep-sky-photography, although it was made for solar observing!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/20210421-14h-43m-DSC_4430.jpg?v=1700301405\"\u003e\u003cimg alt=\"The Triband-coating is an Energy Rejection Filter for observing the sun, whihc does not interfere with narrowband deep-sky observations. Heat shields avoid heating of of the telescope.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/20210421-14h-43m-DSC_4430_480x480.jpg?v=1700301405\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eThe Triband-coating is an Energy Rejection Filter for observing the sun, whihc does not interfere with narrowband deep-sky observations. Heat shields avoid heating of of the telescope.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe special Triband-ERF Schmidt corrector plate of the Triband-SCT has got transmission windows in the following parts of the spectrum: \u003cstrong\u003e380 to 400 nm\u003c\/strong\u003e, \u003cstrong\u003e480 to 515 nm\u003c\/strong\u003e and \u003cstrong\u003e630 to 680 nm\u003c\/strong\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eEspecially in IR, the Triband Schmidt corrector is blocked down to 1450nm, so that the telescope will not heat up. So, you do not need an additional large and precisely polished ERF, and you can use the full optical quality of the Schmidt corrector.\u003c\/p\u003e\n\u003cp\u003eAdditional rear-ventilated heat shields in front of tube and secondary mirror also keep the tube from heating up by the sun's radiation. This way, you can use the full resolution which is available at your location. With videography it is possible to achieve extremely high-resolution detail images of the sun. And you can do this at three wavelengths- not only in H-alpha! You can observe the sun in H-alpha as well as in CaK with a SolarSpectrum Filter, or in in continuum (white light) with a Herschel wedge or an ASTF filter.\u003c\/p\u003e\n\u003cp\u003eThe system is also great for visual observations- the sun will impress you more than ever in those moments when the seeing is good.\u003c\/p\u003e\n\u003ch3\u003eTriBand-frontfilter for narrowband observations\u003c\/h3\u003e\n\u003cp\u003eWith a Triband-SCT, you get a Schmidt-Cassegrain optical tube assembly with a Triband-ERF-coated Schmidt corrector plate and rear ventilated heat shields for tube and secondary mirror (with Neodymium-magnetic holders). The transmission windows are designed for Calcium-K, Continuum (incl H-beta and O III), H-alpha, S II and let you use additional narrowband filters.\u003c\/p\u003e\n\u003cp\u003eFor the following uses, you need further equipment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-alpha:\u003c\/strong\u003e Solar Spectrum H-alpha filter, TZ-3 telecentric system and telecompressor TK0.4 or TK0.7. An additional D-ERF filter is not required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaK:\u003c\/strong\u003e Solar Spectrum CaK-filter, Calcium CaK filter plus additional front filter for observing the sun in CaK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite light:\u003c\/strong\u003e Safety Cool-Ceramic Herschel prism plus optional narrowband filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep-Sky (not for solar observations!):\u003c\/strong\u003e Deep-sky filters according to your field of interest (RGB \/ H-beta \/ O-III \/ H-alpha \/ S-II)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eObserving the sun in H-alpha\u003c\/h3\u003e\n\u003cp\u003eSolarSpectrum-Filter for H-alpha or CaK can be connected directly\u003cbr\u003eThe Triband-SC were developed for the SolarSpectrum H-alpha filters. The Energy Rejection Filter which is integrated into the Schmidt corrector plate eliminates the need for an additional D-ERF. The SolarSpectrum filters require the 2\" Research Grade TZ-3 Telecentric System (3x focal length) (#2459257), to perform at its best at f\/30; with the Research Grade H-alpha 0.4x Telecompressor 2\" for Solar Spectrum (#2459260) with 16mm corrected field of view, you almost regain the original focal length of the telescope and can work both visually and photographically at lower magnifications.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SolarSpectrum-Filter for H-alpha or CaK can be connected directly\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/triband-sct-multi-purpose-teleskop-auf-schmidt-cassegrain-basis-fur-sonne-und-deep-sky-238_1_480x480.jpg?v=1700301476\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eSolarSpectrum-Filter for H-alpha or CaK can be connected directly\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eObserving the sun in CaK\u003c\/h3\u003e\n\u003cp\u003eIn addition to the transmission window between 630 and 680 nm for H-alpha observation, the Energy Rejection Filter has a second window between 380 and 400 nm, in the dark blue\/UV. It is made for using SolarSpectrum CaK filters without an additional Energy Rejection Filter.\u003c\/p\u003e\n\u003cp\u003eIn addition, the Baader K-Line Filter 11„4\" (double stacked) (#2458355) filter can be used, but only behind another filter such as a Baader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P) or AstroSolar photo film ND 3.8 (also available as BDSF: OD 3.8 Baader Digital Solar Filter 200mm (#2459376) in matching mount).\u003c\/p\u003e\n\u003ch3\u003eObserving the sun in continuum (white light)\u003c\/h3\u003e\n\u003cp\u003eUse a Herschel Wedge or an ASTF front filter to see the sun in white light with large apertures and high resolution.\u003c\/p\u003e\n\u003cp\u003eSolar observation in white light can be done with a Baader Safety CoolCeramic Herschel Prism 2\" Photographic (#2956510P) or a temperature-compensating ASTF front filter made of astrosolar film. The sun appears slightly light green. For increased contrast, we recommend a red filter like H-alpha 2\" Bandpass filter (20nm) (#2961853) to reduce the influence of seeing, or the O-III 2\" Super-G Filter (9nm)- CMOS optimized (#2961551).\u003c\/p\u003e\n\u003ch3\u003eA note about solar observing\u003c\/h3\u003e\n\u003cp\u003ePlease note that a Triband SCT is no grab-and-go-telescope: Smaller telescope with less magnification will show nice images even at poorer seeing conditions, but a high-end telescope which pushes everything to its limits also requires a proper location. Make sure that your surroundings don't cause bad local seeing- only then you can take the telescope to its limits!\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Use a Herschel Wedge or an ASTF front filter to see the sun in white light with large apertures and high resolution.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/5b3e2ee54b58ebaader_c8-triband_erfahrungsbericht-6_480x480.jpg?v=1700301468\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eUse a Herschel Wedge or an ASTF front filter to see the sun in white light with large apertures and high resolution.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eDeep-Sky narrowband observation and narrowband photography\u003c\/h3\u003e\n\u003cp\u003eThe Triband-SCTs are based on Celestron's Schmidt-Cassegrains, a well-tried and reliable no-frills telescope system. That's why they are also compatible with a multitude of accessories which was developed for regular Schmidt-Cassegrains- starting with filter drawers like the UFC or focusers like the Baader Diamond SteelTrack with optional motor focuser or the Celestron Focusmotor#821160 up to reducers.\u003c\/p\u003e\n\u003cp\u003eUnlike pure H-alpha-telescopes, you can use the Triband-SCT even at night: The coating is permeable for CaK, H-Beta, O-III, H-alpha and S-II, so that you can use the telescope fully for narrowband- or Ultra UHC-photography- be it with the original f\/10, at night with a reducer or even with a Hyperstar-system at f\/2. You can even use UV-filters (Baader U-Venus-Filter 2\" (350nm) (#2458291) (Baader U-Venus-Filter) or IR-Pass-Filters (Baader IR-Pass Filter 11„4\" (685 nm) (#2458385) and achieve a surprisingly good contrast. The SC optical system suffers much less from chromatic aberration over a much broader spectral range than the best apochromatic lens telescopes. This makes the Baader-Triband-Schmidt-Cassegrains the most versatile CaK and H-alpha-telescopes on the market.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ch3\u003e8\" SCT\u003c\/h3\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSIZE GENERAL\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e8\" SCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2301002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825038784\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e6.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e9.25\" SCT\u003c\/h3\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSIZE GENERAL\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e9.25\" SCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2301003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825038791\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e10.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e11\" SCT\u003c\/h3\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSIZE GENERAL\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e11\" SCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2301004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825038807\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eNET WEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e13.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_triband_sct_manual_and_application_tipps.pdf?v=1700302416\"\u003eBaader Triband-SCT: Manual and Application Tips\u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eRelated Articles\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/first-class-h-alpha-solar-filter-by-solar-spectrum\/\"\u003eFIRST CLASS H-ALPHA SOLAR FILTERS BY SOLARSPECTRUM\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/solar-observation-and-h-alpha-filters-for-schmidt-cassegrains\/\"\u003eSOLAR OBSERVATION AND H-ALPHA-FILTERS FOR SCHMIDT CASSEGRAINS\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/focus-on-the-sun-can-the-baader-sc-triband-replace-a-large-refractor\/\"\u003eFOCUS ON THE SUN: CAN THE BAADER SC-TRIBAND REPLACE A LARGE REFRACTOR?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/blog\/triband-8-im-test-auf-dem-ros-astronomentreffen\/\"\u003eTRIBAND 8\" TESTING AT THE ROS ASTRONOMICAL MEETING (RENCONTRE DES OBSERVATEURS SOLAIRES) IN SERBANNES, FRANCE, JUNE 23- 24, 2018\u003c\/a\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"8\" SCT","offer_id":44135529677036,"sku":"TRIBAND-8","price":0.0,"currency_code":"USD","in_stock":true},{"title":"9.25\" SCT","offer_id":44135529709804,"sku":"TRIBAND-9","price":0.0,"currency_code":"USD","in_stock":true},{"title":"11\" SCT","offer_id":44135529742572,"sku":"TRIBAND-11","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/8-triband-sct-schmidt-cassegrain-based-multi-purpose-telescope-for-sun-and-deep-sky-3e9.jpg?v=1750791052"},{"product_id":"solar-spectrum-research-grade-rg18-18mm-clear-aperture-copy-1","title":"Solar Spectrum Calcium K-Line CK18 (18mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e18mm clear aperture, selected quality with uniform K-Line image\u003c\/li\u003e\n\u003cli\u003eHalf-bandwidths: 1+.5\/-.2 Ang, 0.5+0.1\/-0.1A  \u003cem\u003eExtremely Narrow!\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed only for imaging (K-Line is not proven safe for visual observation)\u003c\/li\u003e\n\u003cli\u003eIntegral Filter Oven with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the objective lens for scopes greater than 100mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\"I used the solar filter today. WOW!!!!!! The level of detail is incredible. Using a Televue Panoptic 35 I can see the entire disk. Using a BinoViewer with 26mm Meade eyepieces, the field of view is smaller but the image looks almost 3D and is far more pleasing. I am more than satisfied with this equipment. Well worth the cost and the wait.\"\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eTony Van Heugten\u003c\/b\u003e\u003cspan\u003e (SO-1.5, 0.3A on a Meade 10\" SCT with 90 C-ERF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution solar filter filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in extremely narrow K-Line filters (\u0026lt; 1A) which are demanding to produce. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 2-6 months, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics.  Other custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"1 +.5\/-.2 Angstrom","offer_id":46857105506540,"sku":"SS-CK18","price":3130.0,"currency_code":"USD","in_stock":true},{"title":".5 +.1\/-.1 Angstrom","offer_id":46859063066860,"sku":"SS-CK18.5","price":3750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2_1_7a3e4aff-a052-4f4b-b90c-baf773785c4b.jpg?v=1750791337"},{"product_id":"solar-spectrum-calcium-k-line-ck18-18mm-clear-aperture-copy","title":"Solar Spectrum Calcium K-Line CK32 (32mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e32mm clear aperture, selected quality with uniform K-Line image\u003c\/li\u003e\n\u003cli\u003eHalf-bandwidths: 1+.5\/-.2 Ang, 0.5+0.1\/-0.1A  \u003cem\u003eExtremely Narrow!\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed only for imaging (K-Line is not proven safe for visual observation)\u003c\/li\u003e\n\u003cli\u003eIntegral Filter Oven with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the objective lens for scopes greater than 100mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\"I used the solar filter today. WOW!!!!!! The level of detail is incredible. Using a Televue Panoptic 35 I can see the entire disk. Using a BinoViewer with 26mm Meade eyepieces, the field of view is smaller but the image looks almost 3D and is far more pleasing. I am more than satisfied with this equipment. Well worth the cost and the wait.\"\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eTony Van Heugten\u003c\/b\u003e\u003cspan\u003e (SO-1.5, 0.3A on a Meade 10\" SCT with 90 C-ERF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution solar filter filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in extremely narrow K-Line filters (\u0026lt; 1A) which are demanding to produce. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 2-6 months, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics.  Other custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"1 +.5\/-.2 Angstrom","offer_id":46859171725548,"sku":"SS-CK32","price":4930.0,"currency_code":"USD","in_stock":true},{"title":".5 +.1\/-.1 Angstrom","offer_id":46859171758316,"sku":"SS-CK32.5","price":5950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2_1_7a3e4aff-a052-4f4b-b90c-baf773785c4b.jpg?v=1750791337"},{"product_id":"solar-spectrum-calcium-k-line-ck46-46mm-clear-aperture-copy","title":"Solar Spectrum Calcium K-Line CK46 (46mm clear aperture)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e46mm clear aperture, selected quality with uniform K-Line image\u003c\/li\u003e\n\u003cli\u003eHalf-bandwidths: 1+.5\/-.2 Ang, 0.5+0.1\/-0.1A  \u003cem\u003eExtremely Narrow!\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed only for imaging (K-Line is not proven safe for visual observation)\u003c\/li\u003e\n\u003cli\u003eIntegral Filter Oven with electronic temperature control (heating and cooling combined). 5 years warranty if handled properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eImportant note: \u003c\/strong\u003eRequires an additional Energy Rejection Filter (D-ERF) in front of the objective lens for scopes greater than 100mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\"I used the solar filter today. WOW!!!!!! The level of detail is incredible. Using a Televue Panoptic 35 I can see the entire disk. Using a BinoViewer with 26mm Meade eyepieces, the field of view is smaller but the image looks almost 3D and is far more pleasing. I am more than satisfied with this equipment. Well worth the cost and the wait.\"\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eTony Van Heugten\u003c\/b\u003e\u003cspan\u003e (SO-1.5, 0.3A on a Meade 10\" SCT with 90 C-ERF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eSolar Spectrum produces what we have found to be the ultimate in high resolution solar filter filter systems. With over 30 years of experience in making filter systems for professionals as well as amateurs, Solar Spectrum brings an unmatched level of expertise to bear in producing filters at prices accessible to amateurs. This experience uniquely enables them to deliver a high level of quality and consistency in extremely narrow K-Line filters (\u0026lt; 1A) which are demanding to produce. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThese rear-mounted mica etalons deliver high-quality narrowband filtration that can be used with apertures from as small as 40mm up to 180mm! Unlike front objective etalons, the telescope aperture is not limited by the diameter of the etalon. Every Solar Spectrum filter can be flexibly configured to match any desired telescope and aperture desired, without any loss in resolution. Each Solar Spectrum filter system includes the rear mounted etalon assembly (which includes an integrated thermoelectric heater\/cooler), programmable temperature control box with digital temperature readout, and AC power cable. The control box accepts 90-256 VAC 50\/60Hz. For DC use, any inexpensive inverter can be used. A complete system consists of a Solar Spectrum Filter and Front-Mounted Energy Rejection Filter. Telescopes with focal ratios faster than f\/20 will also require a telecentric lens to produce the desired f\/25- f\/30 beam. Currently, Telecentric lenses are available in 2X, 3X, and 4X amplifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCurrently, we offer Solar Spectrum filters on a special order basis. Typical delivery times range from 2-6 months, depending on filter size and bandpass. Occasionally we will have a system available from stock. Please contact us for specifics.  Other custom filters are also available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.4; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px; margin: 0px 0px 1em 0px;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003ePayment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeposit of 50% required at time of order, remainder due when filter is completed and ready to ship. Payments by check or money order only (sorry, no paypal or credit cards for Solar Spectrum Products).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/solarspectrum_h_alpha_filter_baader_planetarium_telecentric_systems_346e0461-a02c-49c7-bbef-768fd3c3e48c.pdf?v=1700410227\"\u003eSolar Spectrum H-alpha-filter and Telecentric Systems- Application and Tips \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Solar Spectrum","offers":[{"title":"1 +.5\/-.2 Angstrom","offer_id":46859196530924,"sku":"SS-CK46","price":7420.0,"currency_code":"USD","in_stock":true},{"title":".5 +.1\/-.1 Angstrom","offer_id":46859196563692,"sku":"SS-CK46.5","price":8350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/products\/solarspectrum_advanced_2_1_7a3e4aff-a052-4f4b-b90c-baf773785c4b.jpg?v=1750791337"},{"product_id":"baader-solar-projection-screen-bsps","title":"Baader Solar Projection Screen (BSPS)","description":"\u003cul\u003e\n\u003cli\u003eSafe solar projection on refractors with star diagonals\u003c\/li\u003e\n\u003cli\u003eSimple observation of the Sun in white light – individually or in groups\u003c\/li\u003e\n\u003cli\u003eQuick and easy assembly of pre-cut cardboard parts with pre-mounted adhesive strips\u003c\/li\u003e\n\u003cli\u003eAlso suitable for tracking control, e.g., for public outreach. Optimized for viewing from the side\u003c\/li\u003e\n\u003cli\u003eFor operation you will need (not included)\n\u003cul\u003e\n\u003cli\u003ea lens telescope suitable for solar projection with a star diagonal\/prism and at least 3 cm of backfocus. Recommended for focal ratios of ~f\/6 or slower\u003c\/li\u003e\n\u003cli\u003eeyepiece projection adapter with T-2 thread, e.g., the Baader OPFA - Eyepiece Projection adapter (I - VII) (various versions available)\u003c\/li\u003e\n\u003cli\u003ea glass\/metal eyepiece suitable for solar projection with an appropriate focal length to project a solar image at least 6 cm in diameter. The BSPS has been tested with Baader Classic Ortho\/Plössl eyepieces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eImportant note:\u003c\/strong\u003e Please note all safety instructions – see downloads and product description\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch2\u003eBaader Solar Projection Screen (BSPS)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eA safe way to observe the sun with small groups\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Baader Solar Projection Screen (BSP) provides a safe way of solar projection and allows small groups to observe the Sun together. The projection screen is ideal for observing solar activity with sunspots in white light as well as following the course of solar eclipses.\u003c\/p\u003e\n\u003cp\u003eIt consists of a rear projection screen and a T-2 thread for connection to common eyepiece projection adapters. The screen was developed and tested with the Baader OPFA - Eyepiece Projection adapter (I - VII) (various versions available). When used with the matching Baader Classic Ortho eyepieces on refractors with focal lengths between 250 and 1200 mm, it produces a solar image that fills the 9 x 9 cm projection surface. Sunspots, the limb darkening of the Sun, and the progress of eclipses can all be observed. The screen can also be used with other T-2 projection adapters instead of the Baader OPFA; however, in that case you will need to determine the required distances yourself.\u003c\/p\u003e\n\u003cp\u003eUnlike traditional open projection screens, there is no risk of someone reaching into the light beam or even looking into the eyepiece. Rear projection enables a closed system. The screen can be connected to any telescope suitable for solar and eyepiece projection.\u003c\/p\u003e\n\u003cp\u003eWhen the telescope is mounted on a tracking mount, the Sun can be observed comfortably for several hours. If the mount is not perfectly polar aligned, the Sun will slowly drift out of the field of view. From the drift direction, you can see during the day in which way the mount needs to be corrected and thereby improve the alignment while observing – detailed instructions for this can be found in the PDF of the operating manual.\u003c\/p\u003e\n\u003cp\u003eThe projection screen is particularly useful for public outreach, when many guests are taking turns looking through the eyepiece of a telescope equipped with its own solar filter: if the screen is attached to another small guide scope or finder, you can both check whether the Sun is still centered in the main telescope and at the same time show waiting guests what to expect.\u003c\/p\u003e\n\u003ch2\u003eRequirements\u003c\/h2\u003e\n\u003cp\u003eTo use the Solar Projection Screen, you will also need:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA telescope suitable for solar projection with a star diagonal\/prism – ideally a refractor with a focal length of 250–1200 mm. The projection screen has been tested on telescopes with f\/5 (90\/500) and f\/4 (VarioFinder 61\/250) as well as on 150\/1200 and 150\/2250 mm refractors, each for several hours and at full aperture. To reduce the heat stress for the star diagonal, we recommend using telescopes faster than f\/6, and to stop down telescopes with apertures larger than about 80 mm if necessary. You can see the entire Sun in telescopes up to about 1200 mm focal length; larger telescopes produce a higher magnification and show only a part of it.\u003c\/li\u003e\n\u003cli\u003eA variable eyepiece projection adapter with T-2 thread. The Solar Projection Screen was developed for the Baader OPFA. The diameter of the solar image depends on the distance to the projection surface.\n\u003cul\u003e\n\u003cli\u003eThe eyepiece projection adapter Eyepiece Projection adapter OPFA I – with 1¼\" Nosepiece (#2458141) has a 1¼\" connection;\u003c\/li\u003e\n\u003cli\u003eThe eyepiece projection adapter Eyepiece Projection adapter OPFA II – with 2\" nosepiece (#2458142) fits star diagonals\/prisms with a 2\" nosepiece.\u003c\/li\u003e\n\u003cli\u003eIf you use a Baader star diagonal\/prism with T-2 connection, you can screw the eyepiece projection adapter Eyepiece Projection adapter OPFA IV – Basisversion with T-2i (#2458144) directly onto the housing and thus save backfocus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou may also use other projection adapters, but this may result in different image sizes. The solar image must be at least 60 mm in diameter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA heat-resistant eyepiece. In addition to the usually recommended Huygens eyepieces for solar projection (which are hardly available today in good quality), you can use the Baader Classic Ortho eyepieces with 6, 10, or 18 mm focal length or the 32 mm Baader Classic Plössl\u003c\/li\u003e\n\u003cli\u003eMost telescopes that provide sufficient backfocus for eyepiece projection can also be used with the Solar Projection Screen. The Solar Projection Screen requires about 30mm of Backfocus. Alternatively, the OPFA can also be screwed directly onto a T-2 prism such as T-2 Prism Diagonal with 32mm prism, incl. Focusing Eyepiece Holder and Nosepiece (#2456005K), via the T-2 thread to achieve a very short adaptation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSetup \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eThe BSPS consists of the special projection screen, a T-2 thread adapter, and a pre-cut three-piece cardboard kit with pre-mounted adhesive strips for assembling the housing. Alternatively, you can download the STL files to produce a housing with protective cover from plastic on a 3D printer.\u003c\/p\u003e\n\u003cp\u003eRemove all optical finders from your telescope, or cover the lenses of any optics that may still be installed.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/bsps-legende-en.png?v=1778596752\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eInsert the eyepiece into the projection adapter, remove any T-2 extension tubes if necessary according to the instructions to adjust the distance, and screw the projection adapter onto the Safe Solar Box. Then insert both into your telescope with a star diagonal (on a refractor), point it at the Sun, and focus. Using the sliding focuser of the OPFA (or other variable eyepiece projection adapters), you can slightly adjust the size of the projected solar image. To center the Sun in the telescope, you can use the shadow cast by the tube or tube rings, or a dedicated solar finder.\u003c\/p\u003e\n\u003cp\u003eThe BSPS consists of the special projection screen, a T-2 thread adapter, and a pre-cut three-piece cardboard kit with pre-mounted adhesive strips for assembling the housing. Alternatively, you can download the STL files to produce a housing with protective cover from plastic on a 3D printer.\u003c\/p\u003e\n\u003cp\u003eRemove all optical finders from your telescope, or cover the lenses of any optics that may still be installed.\u003c\/p\u003e\n\u003cp\u003eInsert the eyepiece into the projection adapter, remove any T-2 extension tubes if necessary according to the instructions to adjust the distance, and screw the projection adapter onto the Safe Solar Box. Then insert both into your telescope with a star diagonal (on a refractor), point it at the Sun, and focus. Using the sliding focuser of the OPFA (or other variable eyepiece projection adapters), you can slightly adjust the size of the projected solar image. To center the Sun in the telescope, you can use the shadow cast by the tube or tube rings, or a dedicated solar finder.\u003c\/p\u003e\n\u003ch2\u003eThe right Combinations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length of telescope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOPFA with the following extension tubes (included with the OPFA)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eClassic Ortho Eyepiece\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mm (Baader VarioFinder 10x60)\u003c\/td\u003e\n\u003ctd\u003e2x40 mm\u003c\/td\u003e\n\u003ctd\u003eClassic Ortho 6mm, 1¼\" Eyepiece (HT-MC) (#2954106)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e400 mm (Celestron PowerSeeker 80\/400)\u003c\/td\u003e\n\u003ctd\u003e1x40 mm\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mm (Bresser AR 90\/500)\u003c\/td\u003e\n\u003ctd\u003e2x40 mm\u003c\/td\u003e\n\u003ctd\u003eClassic Ortho 10mm, 1¼\" Eyepiece (HT-MC) (#2954110)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580 mm (Baader APO 95\/580)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e600 mm (Celestron ED 80\/600)\u003c\/td\u003e\n\u003ctd\u003e1x40 mm\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e700 mm (Celestron Inspire 70\/700)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e910 mm (Vixen 80\/910 Mf)\u003c\/td\u003e\n\u003ctd\u003e2x40 mm\u003c\/td\u003e\n\u003ctd\u003eClassic Ortho 18mm, 1¼\" Eyepiece (HT-MC) (#2954118)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 mm (Vixen 90\/1000)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To achieve focus on telescopes with a 1.25\" focuser, the OPFA sometimes had to be screwed directly onto the T-2 Prism Diagonal with 32mm prism, incl. Focusing Eyepiece Holder and Nosepiece (#2456005K).\u003c\/p\u003e\n\u003ch6\u003eApplication Images\u003c\/h6\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eBSPS on Baader Vario Finder 10x60on Vixen 90x1000\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BSPS on Baader Vario Finder 10x60on Vixen 90x1000\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_application_vixen_2_LR.webp?v=1778596407\"\u003e\u003cstrong\u003eBSPS on Celestron AstroMaster 70 AZ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BSPS on Celestron AstroMaster 70 AZ\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_application_astromaster_LR_1.webp?v=1778596407\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eBSPS on Bresser AR 90\/500\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_application_bresser_1_LR.webp?v=1778596407\" alt=\"BSPS on Bresser AR 90\/500\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eBSPS on Baader Vario Finder 10x60\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_application_variofinder_1_LR.webp?v=1778596406\" alt=\"BSPS on Baader Vario\u0026amp;nbsp; Finder 10x60\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eBSPS on Baader APO 95\/580 CaF2 Travel Companion\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"BSPS on Baader APO 95\/580 CaF2 Travel Companion\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_application_baader-apo_LR.jpg?v=1778596810\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003ch6\u003eVideo\u003c\/h6\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/KjxGRSmj8Ss?si=NnGzsT9KufGUdgrw\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch6\u003eIncluded Parts\u003c\/h6\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"BSPS Included Parts\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/opfa-aufbau_bsps_en_1.webp?v=1778595451\"\u003e\u003c\/div\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/bsps-bedienungsanleitung_1025_en.pdf?v=1778596848\"\u003eBaader Solar Projection Screen (BSPS) – Instruction Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/bsps-aufbauanleitung_0925_en.pdf?v=1778596848\"\u003eBaader Solar Projection Screen (BSPS) – Building Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2420400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e4047825061058\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003eT-2 (M42)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Filter with mount\/thread?\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Backfocus\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Wavelength\u003c\/td\u003e\n\u003ctd\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"BSPS","offer_id":47620371939564,"sku":"BSPS","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/2420400_bsps_main_product_kopie_1.webp?v=1778595451"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/collections\/baader-solar-filter_bdsf-2_2400x2400_d806a60c-5502-4fbc-9dea-45c3b25fad6f.jpg?v=1589367952","url":"https:\/\/alpineastro.com\/collections\/solar-observation.oembed?page=2","provider":"Alpine Astronomical LLC","version":"1.0","type":"link"}