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Filters

Overview

Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Celestron's filters are made of high quality, solid plane parallel glass with excellent homogeneity. They're anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron's, and most other manufacturer's, 1¼" eyepieces, and offer a full 26mm clear aperture.

Celestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases. The cells of each filter are double-threaded, so they can be stacked (piggybacked) in various combinations. This allows you to create different color combinations and transmission characteristics, or to have the same color characteristic, but with a lower transmission. When stacking color filters, the effective transmission of the combination you create is equal to the product of the spectral transmission of each of the filters used.

The effectiveness of the filters depends on several factors, including: the aperture and focal length of the telescope, the magnification being used, and seeing conditions.

Dealers

Premier Select Dealers

  • OPTICS PLANET
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  • ADORAMA CAMERA
  • ASTRONOMICS
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  • TELESCOPES.COM
  • B & H PHOTO-VIDEO, INC.
  • SCOPE CITY

Premier Plus Dealers

  • FOCUS CAMERA
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  • STARIZONA
  • LA MAISON DE LASTRONOMIE
  • EFSTONSCIENCE
  • EDMUND SCIENTIFIC

Images

Partial Solar Eclipse

Partial Solar Eclipse

A multiple exposure shows the progression of the moon passing between the earth and sun during a partial solar eclipse as viewed from the east side of the Sacramento River near the Tower Bridge on Monday, June 10, 2002. The photo is a multiple exposure taken over the span of two hours. Each exposure was taken five minutes apart through a Celestron Solar filter which cuts down the suns light by 100,000 times allowing the film to record the crescent shape of the sun as the moon passed before it.

captured using Solar Filter for AstroMaster 90

submitted by bentoni
Southern Highlands

Southern Highlands


captured using Skylight Filter (for SCTs)

submitted by Mick_Hyde
Jupiter and 3 moons

Jupiter and 3 moons


captured using UHC/LPR Filter - 1.25 in

submitted by Boren

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Celestron's Premier Dealers carry the largest selection of Celestron products at the most competitive prices and offer industry expertise, customer service and support.

Premier Select Dealers

TELESCOPES.COM OPTICS PLANET B & H PHOTO-VIDEO, INC. HIGH POINT SCIENTIFIC INC HANDS ON OPTICS ASTRONOMICS OPT TELESCOPES SCOPE CITY ADORAMA CAMERA

Premier Plus Dealers

FOCUS CAMERA EDMUND SCIENTIFIC SKIES UNLIMITED LLC WOODLAND HILLS TELESCOPES ALL-STAR TELESCOPE PHOTON INSTRUMENT ASTRO MECHANICS STARIZONA LA MAISON DE LASTRONOMIE EFSTONSCIENCE



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