Best Aluminum Telescope Filters in 2026

The UV-IR-Cut filter uses the very latest coating technology; to deliver the finest filtration qualit-and lifetime durability used to cut off filter blocks undesirable ultraviolet and infrared rays that may interfere with obtaining the high contrast and high quality images possible with a digital sensor

True optical quality glass substrate and coatings;to deliver the sharpest images possible;can achieves greater detail;less chromatic aberration;more natural colors and finer color gradation

Very low reflection multi-coating; Striate-free; and plane-parallel substrate; It serves as a permanent lens protector;digital imaging with DSLR cameras;CCD cameras;and modified WebCams;or telescope

Premium Material: Aluminum frame, plastic thread and optical glass, durable and no damage to your lens

Transmits only 13 percent of the incoming light, boosting contrast and ability to discern detail on the Moon

Helps reducing overall brightness without altering color, so that not only will more surface features and details pop out, but also you can study them in greater comfort

Filter set includes #12 Deep Yellow, #21 Orange, #80A Blue and #ND-96-0.3 Neutral Density Filter, 50% transmission

Perfect for lunar and planetary observation

Reduce glare and light scattering

1.25" O-III Filter greatly enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions. Astrophotographic 1.25" filter allows high-contrast imaging even in areas with strong light pollution.

Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming. Allowing just for the Double Ionized Oxygen lines between 496mm to 501nm to pass through at 95%.

Completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized. Increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting.

Handy color planetary telescope eyepiece filters help enhance your view of the planets and Moon, unveiling specific features and enabling you to discern more detail

High-grade Schott optical glass is vat-dyed for even color coating, then anti-reflection coated for maximum light throughput

Anodized aluminum cells are double-threaded to permit filter stacking for multiple filter use

236mm9.312" SolarLite Filter for 203mm8.00" instruments. This filter should fit the following models: Celestron and Meade 8" Schmidt Cassegrain and instruments of similar outer diameter. (Will not fit the Meade Light Switch 8" S/C due to the OTA arm). Part number S9187.

Please read carefully: 236mm9.312" is the diameter of the filter. The filter fits like a cap by friction. To be absolutely sure that the filter will fit, please measure the outer diameter of your instrument and make sure that it is not larger.

SolarLite filters have the optical quality of the glass with the advantages of impregnated polymer (Thousand Oaks Optical Black Polymer). The sun will appear in a natural yellow-orange color when viewed through your telescope using this filter.

【Light-Pollution-Reduction UHC Filter】 This ultra-high contrast filter selectively allows emission lines from nebulae to pass through while blocking a large amount of light pollution due to the excessive use of artificial outdoor light

【Improved Contrast】 The filter darkens the sky background and improves the contrast of your images so you can clearly view planetary nebulae and most emission nebulae under a dark sky even when you live in a light-polluted area

【Celestial Observation & Astrophotography】 The filter helps deliver sharp images—an ideal telescope accessory for both night sky observers and astrophotographers

Filter #1 = 2 piece Variable Polarizer

Filter #2 = Lipo Light Reduction Filter

All Optical Glass

Unmatched 98% Average Transmission!  Freedom from ghost images (very low reflection multi-coating, Striae-free, and plane-parallel substrate).

Extremely Sharp Cutoff at 680nm  (leaves all the visible red, including the important 656nm H-alpha emission line).

Sharp cutoff below 420nm.  Eliminates violet halos around bright stars (more effectively than simpler so-called Minus Violet photographic filters).

The 1.25" O-III filter useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming. Allowing just for the Double Ionized Oxygen lines between 495.9nm to 500.7nm to pass through at 90%

Astrophotographic;The filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; 1.25" filter allows high-contrast imaging even in areas with strong light pollution

The filter made from high-grade glass with dichroic interference and antireflection coatings;not only useful at light-polluted sites; the contrast is also increased at dark sky sites;it can be used with all 1.25" eyepieces

Package Included: 1PCS 10mm Optical UV AR-IR CUT filter.

Excellent optical quality.UV IR-AR 10mm filter is applied to block Ultraviolet Rays,Infrared Rays.

The optical low-pass filter is processed by special coating film.

IR filter blocks ultraviolet (UV) and infrared (IR) light wavelengths for higher contrast CCD images

Advanced coatings applied to the precision polished optical glass minimize in-band reflections

The 1.25" anodized aluminum cell threads into the nosepiece of an astrophotography camera or filter wheel

This telescope filter set contains 1pcs moon filter and 1pcs light pollution filter. These filters will enable you to see more features of the lunar and planets with clarity

This moon filter for telescope is designed with high quality neutral density optical glass which transmits only 13 percent of the incoming light, not only cutting down brightness of the lunar surface, but also remain true color

The light pollution filter for telescope helps to selectively block the specific wavelengths of light associated with urban sky glow, and enhances the contrast of deep-sky objects

The 1.25 inch telescope filters set includes 7pcs filters: (1) moon filter , (2) light pollution filter, (3) 5pcs planetary filters. Standard threads for 1.25" Telescope Eyepieces. Perfect for moon and planetary viewing

Moon Filter with 13% Transmission: neutral density optical glass which transmits 13 percent of the incoming light, greatly cut down glare, and increase contrast of lunar features

Light Pollution Filter: It helps to block specific wavelengths of light emitted from common streetlights. Bring you pleasant viewing experience whether you live in a light-polluted city, or from a suburban backyard

Built-in Infrared Blocker (656 nm to 1150 nm) - great for CCD work or projection photography of the Moon and planets with digital cameras

The Baader Planetarium Fringe-Killer Filter is fully threaded and designed for 1.25" oculars

The Baader Planetarium Fringe-Killer Filter removes unwanted blue and purple image fringing while still retaining a pleasing color balance

1. Material: The filter is made of high definition acrylic with good light transmittance.

2. Sealing Ring: The aluminum alloy frame sealing ring has better sealing performance to avoid fall or loosen.

3. Shooting Effect: It can reduce brightness and reduce glare, but it will not change the natural color of the moon and increase the clarity of the moon. STYLE: 52%ND2, 25%ND4, 12.5%ND8, 6.25%ND16