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

SKU FCHBN-1 (Baader #2961080)
Original price $217.00 - Original price $499.00
Original price
$217.00
$217.00 - $499.00
Current price $217.00
Filter Size: 1 25 inch

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Description
  • Baader H-Beta Narrowband Filter – Precision Grade
  • 5.5 nm FWHM, recommended for optical systems from f/10 to f/3.5
  • Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
  • Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
  • Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

The new generation of Baader CMOS-optimized filters features:

  • CMOS-Optimized Baader Filter
  • Increased contrast
  • Ever more narrow passbands
  • Reflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
  • Identical filter thickness to existing standards, with utmost care for parfocality
  • Blackened 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
  • Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed read more)
  • Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment
Life-Coat

Limited-Lifetime-Warranty for CMOS-optimized Baader filters

A 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.

Baader 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 mis-use, physical damage through improper handling, or improper cleaning.

Specifications
MANUFACTURER Baader Planetarium
COLOUR Black
TRANSMISSION RANGE H-Beta
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) 5.5 nm
CWL (CENTRAL WAVELENGTH) 486,1 nm
AR-COATING Reflex-Blocker™ hard coated, planeoptically polished
SPECIAL FEATURES CMOS-optimized with Life-Coat™
FILTER SIZE 1 25", 2", 31mm, 36mm,50.4mm, 50x50mm, 65x65mm
FILTER USAGE CMOS, CCD, H-Beta
FILTER MOUNTED Mounted (LPFC 6mm) / Unmounted
TYPE OF FILTER Narrowband
SINGLE OR SET? Single Filter or Set
FILTER SHAPE round or square