Best Aluminum Telescope Filters of 2026

Alan Eaton Avatar
Alan Eaton
Last Updated: Jan 9, 2026

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Aluminum telescope filters are a must-have for any serious stargazer. These filters work by blocking out unwanted light and enhancing the contrast of celestial objects, providing a clearer and more detailed view of the night sky. Made with high-quality aluminum, these filters are durable and long-lasting. They come in various sizes and are compatible with most telescope models. Whether observing the planets or deep-sky objects, aluminum telescope filters are an essential tool for any astronomer looking to take their stargazing experience to the next level.

At a Glance: Our Top Picks

SVBONY Telescope Filter 1.25 inches UHC Filter Cover #TOP 1
SVBONY Telescope Filter 1.25 inches UHC Filter
ftb score rating icon 9.8
Celestron Moon Filter Kit for Telescope Eyepieces Cover #TOP 2
Celestron Moon Filter Kit for Telescope Eyepieces
ftb score rating icon 9.7
SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter Cover #TOP 3
SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter
ftb score rating icon 9.5

Top 4 Aluminum Telescope Filters

#TOP 1

SVBONY Telescope Filter 1.25 inches UHC Filter

FUSF9131A
BLACK
1.25 inch
SVBONY Telescope Filter 1.25 inches UHC Filter Cover
SVBONY Telescope Filter 1.25" UHC Filter Astrophotography to Improve The Image Contrast Reduces Light Pollution (1.25 inch)

The SVBONY Telescope Filter 1.25 inches UHC Filter is designed to selectively reduce the transmission of certain wavelengths of light, including those produced by artificial light. This filter produces exceptionally sharp and clear images, making it one of the most popular astronomy accessories. It can be used for celestial observations and astrophotography, making the sky background darker, and improving the contrast of emission nebulae. The filter has a 1.25" barrel diameter, is cased in a sturdy transparent case, and has a standard filter thread for 1.25" eyepieces and other accessories. The optical glass lens and aluminum frame significantly reduce light pollution, making it ideal for city and suburban observation.

What We Like
Improves image contrast and reduces light pollution
Produces sharp and clear images for celestial observations and astrophotography
1.25" barrel diameter with standard filter thread for easy attachment to eyepieces and accessories

Celestron Moon Filter Kit for Telescope Eyepieces

94315-CGL
Black
Celestron Moon Filter Kit for Telescope Eyepieces Cover
Celestron – Moon Filter Kit – Fits 1.25' Telescope Eyepieces – Includes 4 Neutral Density and Sky Glow Filters Plus Lunar Map – Perfect Accessory for Astronomy Beginners

The Celestron Moon Filter Kit is a perfect accessory for moon viewing with your telescope. It includes three neutral density filters with different levels of light transmission, a moon and sky glow filter for high contrast views of the lunar surface, and an aluminum filter cell for durability. The filters are threaded on top and bottom for stacking and the kit comes with a plastic carrying case that includes a moon map and legend for identifying popular lunar features.

What We Like
Three different filters for varying light conditions
Moon and sky glow filter for high contrast views
Aluminum filter cells for durability and stacking
#TOP 3

SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter

FW9172
7nm 2inches
SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter Cover
SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter, Reduce Stray Light, H-Alpha&O-III Narrowband Filter for One-Shot Color Camera, Telescope Accessories for Deep Sky Astrophotography

Features
Improve Image Quality: Featuring Over 94% Transmission And Superior Out-Of-Band Light Rejection, SV220 Nebula Filter Delivers A Significant Boost In Image Contrast And Detail For Deep-Sky Astrophotography
Capture Purer Nebula Light: SV220 2" Dual-Band Filter Allows High Transmission Of OIII (500.7nm) And H-Alpha (656.3nm) Nebula Emission Lines, While Effectively Blocking Artificial Light Interference And Skyglow
Suitable Astronomical Telescope: SVBONY SV220 Narrowband Filter Cannot Be Used With Smart Telescopes Or Astronomical Telescopes With A Focal Ratio Of f/4 Or Less
Specification: Anodized Aluminum Frame; Waterproof Optical Glass; Net Weight: 50g; Thread Specification: M48*0.75
Crafted For Astrophotography: SV220 Light Interference Filter Is Designed For Color CMOS, CCD, And Digital Cameras, Significantly Reducing The Difficulty And Hassle Of Post-Processing
Capture The Cosmos Downtown; Use SVBONY SV220 Telescope Filter To Enable Deep-Sky Photography In Light-Polluted Cities Or Under A Full Moon
#TOP 4

Celestron 94119-10 Eyepiece Filter Set

94119-10
Multicolor
Celestron 94119-10 Eyepiece Filter Set Cover
Celestron 94119-10 Lunar and Planetary Eyepiece Filter Set, 4 Pieces - Includes Deep Yellow (12), Orange (21), Blue (80A) and Neutral Density Polarising Filters for 1.25-inch Eyepieces

The Celestron 94119-10 Eyepiece Filter Set is designed for telescope filters and includes #12 Deep Yellow, #21 Orange, #80A Blue, and #ND-96-0.3 Neutral Density Filter, 50% transmission. These filters reduce glare and light scattering, making them perfect for lunar and planetary observation. They are made from high-quality, solid plane parallel glass and are stackable for various combinations.

What We Like
Reduces glare and light scattering
High-quality, solid plane parallel glass
Stackable filters for various combinations
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What filters to use on telescope?

There are four main filter types that can enhance your views: solar, lunar, planetary, deep sky. More equipment advice: Telescope stats explained. A basic guide to telescope mounts.

2. Do telescope light pollution filters work?

Many astrophotographers don't realize that light pollution filters do much more than just block light pollution. Using any kind of narrowband filter, including multi-narrowband, can reduce star bloat and greatly enhance the overall contrast of nebulae in your images — even under dark skies.

3. Is moon filter necessary for telescope?

You do not need a filter to look at the Moon. It is safe for your eyes to observe it without one, even during a full moon when it's at its brightest. That being said, there are times when using a filter can improve your viewing experience and give you more detail in the image.

4. Do you need filters for telescope?

Telescope filters can really help you to see more objects and their spectacular details. Basically, you need to ensure you have three important elements when viewing the sky's treasures. These are contrast, sharpness, and how much light you have at your disposal to see the celestial objects.

Editor's Notes

During our aluminum telescope filter research, we found 16 aluminum telescope filter products and shortlisted 4 quality products. We collected and analyzed 24,366 customer reviews through our big data system to write the aluminum telescope filters list. We found that most customers choose aluminum telescope filters with an average price of $27.71.

The aluminum telescope filters are available for purchase. We have researched hundreds of brands and picked the top brands of aluminum telescope filters, including SVBONY, Celestron. The seller of top 1 product has received honest feedback from 405 consumers with an average rating of 4.9.

Written by
Alan Eaton Avatar

Alan Eaton is a seasoned writer whose expertise is in anything related to electronics, such as headphones, monitoring equipment, computer, and so on, built over a 15-year career in the technology industry. Working in the trade during his youth, he accumulated a great deal of knowledge about machinery.