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.


         

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Celestron Eyepiece & Filter Kit 1.25 in $139.00

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Celestron Eyepiece & Filter Kit 1.25 in

The Eyepiece and Filter Kit (#94303) contains: • Five Superior Grade Plössl Eyepieces - 1.25” — 4-element design with a 52° AFOV (32mm has 44° ) — Superb color resolution, edge sharpness and clarity. All eyepieces are fully multi-coated for maximum...

Celestron Eyepiece Filter Set 1.25 in (21, 80A, 15, Polarizing) $32.00

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Celestron Eyepiece Filter Set 1.25 in (21, 80A, 15, Polarizing)

Celestron Eyepiece Filter Set 1.25 in (21, 80A, 15, Polarizing) Kit includes: 21, 80A, #15, Polarizing filters Celestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come...

Celestron Moon Filter - 1.25 in $11.95

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Celestron Moon Filter - 1.25 in

Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the transmission is about 18%.

Celestron Oxygen III Narrowband Filter - 1.25 in $64.00

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Celestron Oxygen III Narrowband Filter - 1.25 in

The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast...

Celestron Oxygen III Narrowband Filter - 2 in $89.00

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Celestron Oxygen III Narrowband Filter - 2 in

The 2" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between...

Celestron UHC/LPR Filter - 1.25 in $59.00

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Celestron UHC/LPR Filter - 1.25 in

Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and both high and low pressure...

Celestron UHC/LPR Filter - 2 in $81.50

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Celestron UHC/LPR Filter - 2 in

Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and both high and low pressure...


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