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Six color filters in a 2-inch eyepiece thread set

Baader Planetarium

Baader Planetarium Premium 6-Piece Color Filter Set 2" Eyepiece

SKU CH-J16D-A35Y8

Six color filters for 2" eyepieces, using 2 mm plane-parallel glass polished to 30 arc precision to avoid astigmatism or ghosting

  • Optimised planetary detail with six colour filters
  • Maximum light throughput via precision bandpass design
  • Secure fit on standard 50.8 mm eyepiece threads
  • Scratch-resistant 2 mm optical glass substrates
  • Flatness within 30 arc seconds prevents ghosting

Premium Six-Piece Color Filter Set

The Baader Planetarium Premium Six-Piece Color Filter Set provides three bandpass filters in green, bright blue, and dark blue alongside three long-pass filters in red, orange, and yellow. Each filter uses premium optical glass polished to within 30 seconds of arc with a thickness of 2 mm. The substrates are free of striae and plane-parallel to eliminate ghosting and double images.

Astronomers seeking broad planetary enhancement

This set suits observers who want a complete range of color filters for detailed planetary surface observation through 2" eyepieces. The filters maximize light throughput at designated wavelengths and can be placed anywhere in the optical path without introducing astigmatism. Buyers needing narrowband nebula filtration or specialized solar observation filters should look at dedicated alternatives.

Standard 2" eyepiece thread compatibility

Precision 2" / 50.8 mm threads allow secure integration with a wide range of telescopes and accessories. The design provides the largest clear aperture on the market to discourage vignetting at any focal length. Filters maintain pristine image quality even when used in front of a binocular viewer.

How it compares

Measured against everything we stock in Binoculars, Scopes & Sights, at today’s prices. Recalculated every night.

Price $378.99
Pricier than about 77% of the 1,401 comparable items (median $93.99).

Specifications

No published specifications for this item yet.

Questions about this item

Do the 2 mm thick optical glass filters need any special cleaning or replacement over time?

The plane-parallel polished glass substrates resist scratches and maintain image quality without degradation, so no scheduled replacement is required.

Will the 30 arc-second surface accuracy limit image sharpness during long planetary sessions?

Polishing to within 30 seconds of arc eliminates wedge errors, preventing double images or ghosting even after hours of continuous use.

Does the all-glass construction add noticeable heat or weight to a 2" eyepiece train during all-night observing?

The 2 mm thick filters add minimal mass and transmit maximum light at each wavelength, so they do not increase heat or affect balance in the optical path.

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