Celestron Filters



Celestron filters are made of premium quality, solid plane parallel glass with superb homogeneity. They are anti-reflection coated to prevent glaring and ghosting.

All eyepiece filters are threaded to fit Celestron and the majority of other manufacturers eyepieces, offering 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.

Telescope 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.

  • Moon Filter
  • Oxygen III Narrowband Filter
  • Solar Filter
  • UHC/LPR Filter
  • UV/IR Cut Off Filter




Celestron Moon Filter
This filter is well suited for practically any aperture telescope making viewing the Moon far easier on the eye.

Celestron Filter Kit
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.

Celestron LPR Filters
The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass.

Celestron Solar Filters
Enter the new millennium with the finest solar filters available

Celestron UV Filters
This filter has an extremely sharp cutoff at 690nm yet leaves all the visible red, including the important 656nm H-alpha emission line

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