The 1.25" Celestron 1.25" Eyepiece Filter Setfrom Celestron 1.25" Eyepiece Filter Setcontains four assorted filters mounted in black anodized aluminum cells, packed in a plastic case. All four eyepiece filters are threaded to fit most 1.25" eyepieces and accessories. The cells of each filter are double-threaded so that they can be stacked in different combinations. They offer a full 26 mm clear aperture. This filter set includes: ND-96-0.3 Neutral Density, #12 Deep Yellow, #21 Orange, and #80A Blue filters.

Celestron's filters are made of solid plane parallel glass with an anti-reflection coating to help prevent glare and aberrations. Not only are these highly useful filters and combinations, but they also provide an economical way to add versatility to your filter collection.

Fits 1.25" Eyepieces and Accessories    ND-96-0.3 Neutral Density Filter    #12 Deep Yellow Filter    #21 Orange Filter    #80A Blue Filter

Moon - Greatly enhances lunar features. Jupiter - Improves appearance and detail revealed in structure of Jovian belts. Enhances viewing of festoons and polar regions. Mars - Reduces light from the blue and green areas which darken the maria, oases and canal markings, while lightening the orange-hued desert regions. Also sharpens the boundaries of yellow dust clouds. Mercury - Reduces the brightness of blue sky during daylight observing, to reveal surface features. Saturn - Improves structure of the Saturnian bands and highlights blue polar regions. Venus - Use during daylight observing to reduce brightness of blue sky. Comets - Enhances definition of comet dust tails and heads in larger telescopes (11" and greater aperture). Solar - When using a Celestron Mylar Solar Filter, adding this orange filter will give true color rendition.

Moon - Enhance lunar detail. Jupiter - Enhance the boundaries between the reddish belts and adjacent bright zones. Useful for viewing the Great Red Spot. Mars - Very useful during the violet clearing. Helpful in studying surface features and polar caps. Mercury - Improve observation of dusky surface markings at twilight, when the planet is near the horizon. Saturn - Enhance low-contrast features between the belts and zones. Venus - Useful for increased contrast of dark shadings in upper Venusian clouds. Comets - Bring out the best definition in comet gas tails.

Moon - Enhances the lunar features. Jupiter - Penetrates and darkens the atmospheric currents that contain low-hue blue tones. It enhances the orange and red features of the belts and zones. It is useful for studies of the polar regions. Mars - Reduces the light from the blue and green areas which darken the marias, oases and canal markings while lightening the orange-hued desert regions. It also sharpens the boundaries of yellow dust clouds. Neptune - Will improve detail in larger telescopes such as an 11" or larger apertures. Saturn - Penetrates and darkens the atmospheric currents containing low-hue blue tones. It enhances the orange and red features of the belts and zones. Uranus - improves detail in larger telescopes such as an 11" or larger apertures. Venus - Reveals low-contrast surface features. Comets - Enhances the definition in comet tails.

Moon - Excellent for reducing irradiation, glare and subject brightness. Colors are unaltered, as light is transmitted uniformly over the entire spectrum. Each model performs somewhat differently, depending on the brightness of the moon. Planets - Stacking in combination with color filters lowers transmission, but retains true color balance for specific applications. Reduces glare on brighter planets and minimizes irradiation. Binary (Double) Stars - Helpful in splitting binary stars, because it reduces glare and diffraction effects around the brighter star of the binary pair.

Related Questions and Answers

Q: 1. Dear i heave telescope skywatcher p250 quattro-10 and iready pay this eyepiece but it is not clear i dont now whay???

A: Dear Qassem, Please contact our Technical Support Department, so a representative can speak to you and help to troubleshoot the issue which could be caused by a variety of different reasons such as optics in need of collimation, scope needing cool down, etc. You can reach our Technical Support Department by submitting a ticket at: https://www.celestron.com/pages/technical-support Sincerely, Garrett at Celestron

Q: 2. I'm a beginner so plse forgive this question - but how do these filters attach to the eyepieces? I see the filters have femal;e threads on them - do they screw onto the top of the eyepiece? Does this mean all eyepieces have male threads so that they accept filters suich as these to be attached? Thanhs, just trying to understand how these work

A: The Celestron Moon Filter Set has male and female threads. . The easiest way to attach a filter is on the diagonal. This way the eyepieces can be changed without re-attaching the filter from one eyepiece to another. Female thread on a filter is used for stacking several filters.

Q: 3. Does this zoom attach directly to a t-ring?

A: No it does not. It slides into a 1.25" eyepiece sleeve of a telescope.

Q: 4. Are there t-threads behind the eyecup that a T-adapter can screw onto?

A: The Celestron 8-24mm Zoom Eyepiece (1.25") BH #CEEPZ824 • MFR #93230 has no T-threads.

Q: 5. What is the thread diameter and TPI or Pitch under the rubber eyecup?

A: That information is not published by Celestron

Q: 6. I have a Celestron TrailSeeker 80 spotting scope. It came with its own 8-24 zoom eyepiece. It's fine. But would this different 8-24 eyepiece be an upgrade? Is the quality higher? If so, great. If not, I'll stick with the original.

A: The Celestron 8-24mm Zoom Eyepiece (1.25") BH #CEEPZ824 • MFR #93230 is the same eyepiece that comes with the Celestron TrailSeeker 80 20-60x80 Spotting Scope.

Q: 7. Is this zoom eyepiece click-stop? If yes, how many increments?

A: No it does not there are 4 markings 8,12,16 24 it works great

Q: 8. What magnification would this be on a 100mm m2 Celestron spotting scope?

A: 540mm focal length divided by 18mm eyepiece = 30x Sincerely, Garrett at Celestron

Q: 9. Does this lens work with Astromaster 130EQ?

A: Yes, the Celestron Omni 6mm Eyepiece (1.25") will work with the Celestron AstroMaster 130EQ. This will provide a 108x magnification.

Q: 10. Does it work with celestron 127 slt ?

A: Yes the Celestron 8-24mm Zoom Eyepiece (1.25") is compatible with the Celestron 127SLT telescope.