1.25″ Astronomy Filters

UHC • IR‑Cut • CPL multi‑layer coated filters — clearer nebulae, tighter stars, and better contrast for lunar & planetary imaging.

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Fibonax multi‑layer coated 1.25 inch filter
High Contrast

Narrower bandpass boosts nebula visibility under city skies.

Imaging & Visual

Optimized for eyepiece observing and astrophotography.

Multi‑layer Coating

AR coatings reduce reflections and halos around bright stars.

Standard Thread

1.25″ M28.5×0.6 fits most focusers, diagonals, and cameras.

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Quick Specs

  • Diameter: 1.25″ (Ø31.7 mm) • Thread: M28.5×0.6
  • Coating: Multi‑layer broadband AR • Low reflection
  • Types: UHC / IR‑Cut / CPL
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FAQ

UHC improves nebula contrast by suppressing broadband light pollution. IR‑Cut blocks IR for sharper focus on refractors and most CMOS cameras. CPL is great for glare control on the Moon and daylight scenes.

Yes — 1.25″ with M28.5×0.6 threads fits most 1.25″ diagonals, focusers, planetary cameras, and standard adapters.

Absolutely. For visual, expect darker backgrounds and higher contrast. For imaging, expect tighter stars and fewer halos when used with appropriate exposure settings.

Ready to upgrade your views?

Pick a filter and start pulling out more detail from your skies tonight.

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UV IR Light Cut-Off Filter
UV IR Light Cut-Off Filter

1.25 inch Astronomical Telescope Filter, UV IR Light Cut-Off Filter, Aluminum Alloy Material, Frame Stacking Structure, Multi-Layer Coating Optical Glass, Correct Color cast

$15.98
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Circular Polarizer CPL Filter
Circular Polarizer CPL Filter

Circular Polarizer CPL Telescope Filter, High Transmittance Optical Glass, Compatible with 1.25 Telescope Eyepiece, Astrophotography Camera,Astronomical Observation Components

$12.99
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Ultra High Contrast UHC Filter
Ultra High Contrast UHC Filter

Ultra High Contrast UHC 1.25 inch Telescope Filter，Eliminates Light Pollution, Improves Astrophotography Contrast, Aluminum Alloy Frame, Stackable Filter Structure, Astronomical Components

$28.00
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