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Established 2001

Passionate about Astronomy with over 40 years experience

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Baader 60 Years Anniversary Sale

Sale Sale
$76.00
$76.00 - $76.00
$76.00
$68.40
$68.40 - $68.40
$68.40

Baader ZEISS Camera adapter M44/T-2

Baader Planetarium

Description Combo of M44 male and T-2 male threads T-2 (M42 x 0.75) thread To connect T-2 accessories / cameras / T rings to Zeiss telescopes Opti...

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Sale Sale
$48.00
$48.00 - $48.00
$48.00
$43.20
$43.20 - $43.20
$43.20

Baader M42x1 (female) / T-2 (M42x0.75 male) SLR Camera Adapter

Baader Planetarium

Description M42x1 internal thread with T-2 external thread Transition adaptor for all Russian threaded M42x1 to the T-2 M42x0.75 thread. Allows 1....

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Sale Sale
$48.00
$48.00 - $48.00
$48.00
$43.20
$43.20 - $43.20
$43.20

Baader 2"/2" Inverter Ring with 48mm filter thread

Baader Planetarium

Description Converts 2" female into 2" male thread Internal M48 Filter thread for 2" filter Can be used to connect Baader Hyperion Mark III Zoom d...

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Sale Sale
$47.00
$47.00 - $47.00
$47.00
$42.30
$42.30 - $42.30
$42.30

Baader T-2/T-2 Inverter Ring

Baader Planetarium

Description Changes a T-2 female into a T-2 male thread Optical path length is zero. Blackened internal threading for stray light control Learn ...

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Sale Sale
$58.00
$58.00 - $58.00
$58.00
$52.20
$52.20 - $52.20
$52.20

Baader Double T-Filterholder 1.25"

Baader Planetarium

Description Filter holder with T-2 thread and M28.5 internal thread. A continuous external T-2 thread with an internal 1.25" filter thread. Used f...

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Sale Sale
$62.00
$62.00 - $62.00
$62.00
$55.80
$55.80 - $55.80
$55.80

Baader Adapter 2" (male) / T-2 (male)

Baader Planetarium

Description Adaptor ring with 2" external thread and T-2 external thread Changes a 2" (50.8mm) inner thread to a T-2 (M42x0.75) outer thread Inter...

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Sale Sale
$48.00
$48.00 - $48.00
$48.00
$43.20
$43.20 - $43.20
$43.20

Baader M43a x 1 / T-2a Adapter (e.g. for Vixen)

Baader Planetarium

Descripiton Telescope-sided with M43 x 1 male thread, e.g. for Vixen instruments Eyepiece-sided with T-2 (M42 x 0,75) male thread This connectio...

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Sale Sale
$36.00
$36.00 - $36.00
$36.00
$32.40
$32.40 - $32.40
$32.40

Baader Adapter M36.4 / T-2 (T-2 part #03)

Baader Planetarium

Description M 36.4 is standard of Vixen telescopes Telescope side external thread 36.4mm Focuser side T-2 external thread (direct T-2 photo thread...

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Sale Sale
$39.00
$39.00 - $39.00
$39.00
$35.10
$35.10 - $35.10
$35.10

Baader T-2 / 40 mm Extension Tube (T-2 part #25B)

Baader Planetarium

Description 40mm optical path length Telescope side T-2 internal thread Focus side T-2 external thread For eyepiece projection with shift/sliding ...

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Sale Sale
$35.00
$35.00 - $35.00
$35.00
$31.50
$31.50 - $31.50
$31.50

Baader T-2 / 15 mm Extension Tube (T-2 part #25A)

Baader Planetarium

Description 15mm optical path length Telescope side T-2 internal thread Focus side T-2 external thread For eyepiece projection with shift/sliding ...

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Sale Sale
$32.00
$32.00 - $32.00
$32.00
$28.80
$28.80 - $28.80
$28.80

Baader T-2 / 7.5 mm Extension Tube (T-2 part #25C)

Baader Planetarium

Description 7.5mm optical path length Telescope side T-2 internal thread Focus side T-2 external thread For eyepiece projection with shift/sliding...

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Sale Sale
$30.00
$30.00 - $30.00
$30.00
$27.00
$27.00 - $27.00
$27.00

Baader 1.25"- 31.8mm nosepiece extension with 1.25" filter thread on both sides (T-2 part #05)

Baader Planetarium

Description There is often a problem with off-axis systems or folding mirror attachments, where the receptacles of normal eyepieces is just 1-2cm ...

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Sale Sale
$41.00
$41.00 - $41.00
$41.00
$36.90
$36.90 - $36.90
$36.90

Stop Ring 1.25" (T-2 part #30)

Baader Planetarium

Description Stop ring 1.25" for sliding onto 1.25" eyepieces barrel Precise adjustment ring with 1.25" inner diameter and two screws To fix the in...

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Sale Sale
$16.00
$16.00 - $16.00
$16.00
$13.95
$13.95 - $13.95
$13.95

Baader Rubber Eyeshield II for Diameter 33.5- 34 mm

Baader Planetarium

Description With folding side wing For diamter 33.5mm- 34mm Specifications MANUFACTURER Baader Planetarium SKU (#) 2402020 EAN CODE 404782...

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Sale Sale
$126.00
$126.00 - $126.00
$126.00
$113.40
$113.40 - $113.40
$113.40

Baader 3.3" Celestron Nut (T-2 part #18)

Baader Planetarium

Description 3.3" thread for C11 and C14 For connecting the 2" eyepiece clamp no. 2408140 (T-2 component #17) to C11 and C14 telescopes A clear 50m...

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Sale Sale
$59.00
$59.00 - $59.00
$59.00
$53.10
$53.10 - $53.10
$53.10

Baader 2" / T-2 Nose Piece and Camera adapter (same as used by SBIG) (T-2 part #16)

Baader Planetarium

Description T-2 Photo-Adapter with 2" inner thread Telescope side 2" nose piece barrel with safety groove, focus side T-2 external thread. Effecti...

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Sale Sale
$70.00
$70.00 - $70.00
$70.00
$63.00
$63.00 - $63.00
$63.00

Baader Pushfix Reducer 2" to 1.25" (T-2 part #15a)

Baader Planetarium

Description Ideal for Newton Focuser e.g. Baader Newton Crayford focusers with only 1mm optical path length Provides three separate mounting optio...

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Sale Sale
$33.00
$33.00 - $33.00
$33.00
$29.70
$29.70 - $29.70
$29.70

Reducer 2" / 1.25" for NT Steeltrack

Baader Planetarium

Description Special Reducer 2" / 1.25" with 4.5mm optical height only Suitable for BDS-NT Diamond Steeltrack Includes 2" Filterholder (M48 inner t...

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Sale Sale
$90.00
$90.00 - $90.00
$90.00
$81.00
$81.00 - $81.00
$81.00

Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21)

Baader Planetarium

Description A widefield camera adapter for all Schmidt-Cassegrain Celestron/Meade telescope tubes. Allows T-2 accessories to be used with an SCT t...

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Sale Sale
$67.00
$67.00 - $67.00
$67.00
$60.30
$60.30 - $60.30
$60.30

Baader Reducer 2"/ 1.25" (T-2 part #15)

Baader Planetarium

Description 2" external thread to 1.25" internal thread reducter / eyepiece adaptor Strong grip with 2 screws and non-marring bronze compression r...

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Baader T-2 Locking Ring with female T-2 thread
Sale Sale
$28.00
$28.00 - $28.00
$28.00
$25.20
$25.20 - $25.20
$25.20

Baader T-2 Locking Ring with female T-2 thread

Baader Planetarium

Description T-2 counter ring with T-2 internal thread Outside diameter 55mm Height 3.75mm Learn more about THE BAADER ASTRO T-2 SYSTEMTM Specific...

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Sale Sale
$62.00
$62.00 - $62.00
$62.00
$55.80
$55.80 - $55.80
$55.80

Baader Reducer 1.25" / 24,5mmwith filter holder (T-2 part #10)

Baader Planetarium

Description Eyepiece barrel reducer, 1.25" "to 0.965" (24.5mm) Threaded M28.5 for 1.25" filters For using 0.965" (24.5mm) eyepieces in 1.25" "eyep...

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Sale Sale
$59.00
$59.00 - $59.00
$59.00
$53.10
$53.10 - $53.10
$53.10

Baader Eyepiece 1.25"/36.4mm (T-2 part #11)

Baader Planetarium

Description 1.25" "/ T-2 eyepiece with fine focus (5mm focus travel) With three eyepiece clamping screws for fine centering- as well as rotation l...

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Sale Sale
$77.00
$77.00 - $77.00
$77.00
$69.30
$69.30 - $69.30
$69.30

Zeiss-Diascope Bayonet 1.25" eyepiece adapter

Baader Planetarium

Description Bayonet adapter to fit suitable 1.25" astro-eyepieces onto all Carl Zeiss Diascope Fluorit spotting scopes includes Allen Wrench key a...

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Sale Sale
$93.00
$93.00 - $93.00
$93.00
$83.70
$83.70 - $83.70
$83.70

Diascope Okularbajonett 2"

Baader Planetarium

Description MANUFACTURER Baader Planetarium SKU (#) 2454502 EAN CODE 4047825011534 WEIGHT (KG) 0.055 INNER DIAMETER / CLEAR APERTURE (MM...

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New Products

$324.00 - $630.00
$324.00 - $630.00
$324.00 - $630.00
$324.00

Shipping Crates for Baader FFB - FlatFieldBox

Baader Planetarium

Mandatory shipping crates (plywood) for Baader FFB - Flatfieldbox with 450 / 650 / 850 / 1250mm clear aperture (various versions available) Must b...

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$2,620.00 - $7,290.00
$2,620.00 - $7,290.00
$2,620.00 - $7,290.00
$2,620.00

Baader FFB - Flatfieldbox with 450 / 650 / 850 / 1250mm clear aperture

Baader Planetarium

Special Order Item Only - Please contact us for lead time and additional freight charges. Perfect for astrophotography: Optimize your images with ...

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$582.00 - $582.00
$582.00
$582.00 - $582.00
$582.00

Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp and adjustment function

Baader Planetarium

Description 2" BBHS prism diagonal with 2" ClickLock Prism made of Bak4 glass with sealed BBHS® coating CNC-milled black aluminium housing with ad...

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$559.00 - $559.00
$559.00
$559.00 - $559.00
$559.00

Baader 2" BBHS® Mirror Diagonal with 2" ClickLock Clamp and Adjustment Function

Baader Planetarium

Description 2" BBHS mirror diagonal with 2" ClickLock® clamp CNC-milled black aluminum housing with adjustable wedge for adaptation to individual ...

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$837.00 - $837.00
$837.00
$837.00 - $837.00
$837.00

Guidescope rings BP IV - for tube diameters from 175-265mm (2pc), with large knobs and ball bearing tips

Baader Planetarium

Description Guidescope rings BP IV (2 pc) For tube diameter 175 - 265 mm Massive, solid, turned aluminium rings Width 28 mm Support surface with ...

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Sale Sale
$50.00
$50.00 - $50.00
$50.00
$45.00
$45.00 - $45.00
$45.00

Adapter D60 (Pentax) to 2" Nosepiece

Baader Planetarium

Description With 2" bronze pressure ring and 30.5mm length, 60mm outer diameter This reducer fits onto every 2" barrel and gets clamped with two M...

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Sale Sale
$59.00
$59.00 - $59.00
$59.00
$53.10
$53.10 - $53.10
$53.10

Adapter M54 internal to T- external

Baader Planetarium

Overview Reducing Adapter M54i to T-2a (M42 x 0.75) with M54 female thread Changes the M54 male thread of telescope into an T-2 male thread Can be...

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Sale Sale
$173.00
$173.00 - $173.00
$173.00
$155.70
$155.70 - $155.70
$155.70

Baader M54 Heavy Duty QuickChanging System (consisting of parts #2958760 & #2958765), optical length 15mm

Baader Planetarium

Description Heavy Duty M54 Quick Changing System enables lightning-fast changes between cameras, filter wheels or ClickLock eyepiece clamps Optica...

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Sale Sale
$73.00
$73.00 - $73.00
$73.00
$65.70
$65.70 - $65.70
$65.70

Baader M54 Quick Change Ring with optical length 4mm

Baader Planetarium

Description M54 male threaded quick coupler with S54 mm dovetail Creates a quick change and rotating device with heavy load capacity when coupled ...

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Sale Sale
$117.00
$117.00 - $117.00
$117.00
$105.30
$105.30 - $105.30
$105.30

Baader M54 Heavy Duty QuickChanger with Optical length 11mm

Baader Planetarium

Description M54 female thread Heavy Duty Quick Changer Creates with the M54a Change Ring with S54a ring dovetail (#2958765) a quick-change and rot...

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Baader 2" Cool-Ceramic Safety Herschel Prism Mark II – (Visual / Photo) Now IN STOCK!

Baader 2" Cool-Ceramic Safety Herschel Prism Mark II – (Visual / Photo) Now IN STOCK!

Available in two versions:

PHOTO: Baader 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

VISUAL: Baader 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. Now Includes Fitted Carrying Case

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Triband-SCT - Schmidt-Cassegrain-based Multi-Purpose-Telescope, for Sun and Deep Sky

New Baader CMOS Optimized Filters

Baader CMOS-Optimized Filters See the Range
Baader CMOS-Optimized Filters See the Range
$317.00 - $1,971.00
$317.00 - $1,971.00
$317.00 - $1,971.00
$317.00

Baader 3.5 / 4nm f/3 Ultra-Highspeed Filters- CMOS-optimized (H-alpha / O-III / S-II)

Baader Planetarium

Description Baader has released a whitepaper guiding you how to select the best filter for your telescope system, and why this is important in rela...

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$324.00 - $2,105.00
$324.00 - $2,105.00
$324.00 - $2,105.00
$324.00

Baader 3.5 / 4nm f/2 Ultra-Highspeed Filters- CMOS-optimized (H-alpha / O-III / S-II)

Baader Planetarium

Description Baader has released a whitepaper guiding you how to select the best filter for your telescope system, and why this is important in rela...

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$195.00 - $1,310.00
$195.00 - $1,310.00
$195.00 - $1,310.00
$195.00

Baader 6.5nm f/2 Highspeed Filters- CMOS-optimized (H-alpha, O-III, S-11)

Baader Planetarium

Description Baader has released a whitepaper guiding you how to select the best filter for your telescope system, and why this is important in rela...

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$320.00 - $1,982.00
$320.00 - $1,982.00
$320.00 - $1,982.00
$320.00

Baader 3.5nm / 4nm Ultra-Narrowband Filters- CMOS-optimized (H-alpha, O-III, S-11)

Baader Planetarium

Description Baader has released a whitepaper guiding you how to select the best filter for your telescope system, and why this is important in rela...

View full details
$176.00 - $1,287.00
$176.00 - $1,287.00
$176.00 - $1,287.00
$176.00

Baader 6.5nm Narrowband Filters- CMOS-optimized (H-alpha, O-III, S-11)

Baader Planetarium

Description Baader has released a whitepaper guiding you how to select the best filter for your telescope system, and why this is important in rela...

View full details
$244.00 - $559.00
$244.00 - $559.00
$244.00 - $559.00
$244.00

Baader H-beta Narrowband-Filter (5.5nm)- CMOS-optimized

Baader Planetarium

Description Baader H-Beta Narrowband Filter- Precision Grade 5.5 nm FWHM, recommended for optical systems from f/10 to f/3.5 Reflex-BlockerTM hard...

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$77.00 - $77.00
$77.00
$77.00 - $77.00
$77.00

Baader Clearglass Filter 2" unmounted (Ø 47,4mm) for FCCT- CMOS-optimized

Baader Planetarium

Description Baader Premium grade impermeable 2" RGB-C Clearglass Filter without filter cell (ؘ 47,4 mm), 2mm thickness The Baader clear glass fil...

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$87.00 - $1,063.00
$87.00 - $1,063.00
$87.00 - $1,063.00
$87.00

Baader CMOS-optimized L-RGB Filters

Baader Planetarium

Description New CMOS-optimized L-RGB filters from Baader Planetarium with Reflex-BlockerTM and Life-Coat™. Now with 47.4 mm unmounted for use with ...

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$182.00 - $4,634.00
$182.00 - $4,634.00
$182.00 - $4,634.00
$182.00

Baader SLOAN/SDSS Filters- Photometric

Baader Planetarium

Description Baader SLOAN-ugriz' Bandpass Filter Set, suitable from f/15 to f/1.8 SLOAN/SDSS (ugriz€™) photometric filters with transmission accord...

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Latest News

  • Celebrating 60 Years of Baader Planetarium
    April 1, 2026

    Celebrating 60 Years of Baader Planetarium

    For over six decades, Baader Planetarium has set the standard in optical innovation and precision engineering. For 25 years, Alpine Astronomical has proudly partnered with Baader as the official North American distributor and service center—bringing world-class astronomy solutions to demanding...

    Read now
  • Baader Eyepiece Sale – Save Up to 20%
    November 2, 2024

    Baader Eyepiece Sale – Save Up to 20%

    Baader Eyepiece Sale – Save Up to 20% Discover the universe with clarity and precision using Baader’s renowned eyepieces, now available at up to 20% off! From 1st November until December 31, 2024, Alpine Astronomical is offering a limited-time sale...

    Read now
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