Best Telescope Filters of 2026

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

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Telescope filters are essential accessories for astronomers and stargazers alike. These specialized filters are designed to enhance the viewing experience by blocking out unwanted light and improving contrast. They come in a variety of types, including color filters, polarizing filters, and neutral density filters. Color filters are used to enhance specific colors and features on celestial objects, while polarizing filters reduce glare and enhance contrast. Neutral density filters are used to reduce the overall brightness of the image without affecting color balance. With the right combination of telescope filters, viewers can enjoy a clearer and more detailed view of the night sky.

At a Glance: Our Top Picks

Celestron Telescope Moon Filter Cover #TOP 1
Celestron Telescope Moon Filter
ftb score rating icon 9.8
SVBONY 2" UV IR Cut Telescope Filter with SV226 Drawer Cover #TOP 2
SVBONY 2" UV IR Cut Telescope Filter with SV226 Drawer
ftb score rating icon 9.7
Celestron EclipSmart Safe Solar Telescope Filter Cover #TOP 3
Celestron EclipSmart Safe Solar Telescope Filter
ftb score rating icon 9.5

Top 10 Telescope Filters

#TOP 1

Celestron Telescope Moon Filter

94119-A-CGL
Black
Celestron Telescope Moon Filter Cover
Celestron 1.25 inch Moon Filter - Suitable for Lunar Observation, Extra Bright Planets or Terrestrial Viewing Over Sand or Snow, Black

The Celestron Telescope Moon Filter is an eyepiece accessory that reduces moon glare and enhances lunar crater details, making it great for full moon observing. It threads onto most 1.25" eyepieces in seconds and is also useful for extra bright planets as well as terrestrial viewing over sand or snow. It is a must-have for any stargazer who wants to get a clearer view of the moon's surface.

What We Like
Reduces moon glare and enhances lunar crater details
Works with any telescope that accepts 1.25" eyepieces
Also useful for extra bright planets as well as terrestrial viewing over sand or snow
#TOP 2

SVBONY 2" UV IR Cut Telescope Filter with SV226 Drawer

W9184A-F9127B
SVBONY 2" UV IR Cut Telescope Filter with SV226 Drawer Cover
SVBONY 2" UV IR Cut Block Telescope Filter with SV226 Filter Drawer, Blocks Red Ultraviolet, 2"-1.25" Two Filter Holders, Telescope Accessories for Astrophotography

The SVBONY UV IR Cut Filter helps you capture clearer and sharper images by blocking unwanted ultraviolet and infrared light that can blur your photos. It uses advanced coating technology to ensure high-quality filtering and long-lasting durability, so your images stay crisp over time. The filter also has a special multi-coating that reduces reflections, giving you better contrast and protecting your lens from damage. With two filter holders compatible with 2" and 1.25" filters, you can easily switch filters without hassle, making it perfect for astrophotography even in dark conditions. This filter is a helpful accessory for improving your telescope imaging experience.

What We Like
Advanced UV and IR blocking
Durable multi-coating protection
Reduces reflections for clarity
Dual filter holders convenience

Celestron EclipSmart Safe Solar Telescope Filter

94244-CGL
Black
8" SCT and EdgeHD
Celestron EclipSmart Safe Solar Telescope Filter Cover
Celestron 94244 EclipSmart Solar Eclipse Telescope Filter – ISO 12312-2 Compliant, Secure Fit with Solar Safe Film, Works with 8” Schmidt-Cassegrain/EdgeHD Telescopes, Black

Observe the sun and solar phenomena safely with Celestron EclipSmart Safe Solar Telescope Filter. This solar filter is ISO-certified and compatible with Celestron 8-inch Schmidt-Cassegrain and EdgeHD telescopes. The filter has a secure fit to your telescope with two hook and loop straps. The Solar Safe film, made in the USA, has a natural orange tint which is perfect for visual observing and taking images through your telescope.

What We Like
ISO 12312-2 compliant
Compatible with Celestron 8-inch Schmidt-Cassegrain and EdgeHD telescopes
Secure fit with two hook and loop straps
Solar film made in the USA
Natural orange tint produces great views and images
#TOP 4

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
#TOP 5

SVBONY SV226 Telescope Filter Drawer with M42-M48 Adapter

FCAW9184A
BLACK
M48-M42
SVBONY SV226 Telescope Filter Drawer with M42-M48 Adapter Cover
SVBONY SV226 Telescope Filter Drawer, Photographic Filters Drawer with M42-M48 Adapter, Double Magnetic Filter Holder for 1.25" and 2" Filter Mounted, for Deep Sky Photography

The SVBONY SV226 Filter Drawer is designed to work smoothly with a wide range of telescope accessories, including popular camera brands and filters. This means you can easily connect it to your existing equipment without hassle. Its double magnets offer a strong hold, making filter changes quick and secure without the need for screws. You can also use two filters at once, saving time and effort when switching between them during your night sky photography. Additionally, the adjustable locking screw helps prevent light leaks during long exposures, ensuring your images come out clear and sharp every time.

What We Like
Wide compatibility
Strong magnetic attachment
Dual filter holders
Adjustable light leak lock
#TOP 6

Celestron Eyepiece and Filter Accessory Kit

94303-CGL
Silver
2 GB
Celestron Eyepiece and Filter Accessory Kit Cover
Celestron Accessory Kit with Five 1.25" Plossl Eyepieces, 2x Barlow and Filter Set

The Celestron Accessory Kit is the perfect all-in-one solution for telescope enthusiasts. With a 2x Barlow lens and 5 Plössl eyepieces featuring a 52-degree field of view, this kit is a great way to enhance your view and instantly boost power. The kit also includes colored filters for astronomical viewing like a moon filter and popular planetary filters. The sturdy, foam-lined case will protect your accessories and even has room to add more eyepieces later.

What We Like
Includes 5 superior-grade Plössl eyepieces ranging from low to high power
Comes with a 2x Barlow lens to double magnification of each eyepiece
Colored filters included for astronomical viewing
#TOP 7

Celestron EclipSmart Solar Eclipse Filter

44428
Celestron EclipSmart Solar Eclipse Filter Cover
Celestron – EclipSmart Safe Solar Eclipse Telescope and Camera Filter – Meets ISO 12312-2:2015(E) Standards – Works with Your Telescope, Spotting Scope, or DSLR Camera – Observe + Photograph Eclipses

Celestron Eclipse Filter is a solar-safe telescope filter that meets international safety standards for direct sun viewing. It works with telescopes, spotting scopes, or DSLR cameras with objective lenses between 75mm to 100mm in diameter. Easily adjust and secure the filter for a safe fit. The solar film, made in the USA, provides great views with its orange tint, ideal for observing and capturing images. Purchase includes a 2-Year US Warranty and support from US-based experts.

What We Like
Meets safety standards
Works with various devices
Secure fit
#TOP 8

SVBONY Telescope Filter

FUSF9127A
1.25 inch
SVBONY Telescope Filter Cover
SVBONY Telescope Filter, 1.25" UV IR Cut Block Filter, Blocks Red Ultraviolet, Multi Coated Infra Keep Planetary Images Sharp, for CCD Digital Telescope Astrophotography

SVBONY Filter is a 1.25 inches UV IR Cut Block Filter that serves as a permanent lens protector for digital cameras or telescopes. It blocks undesirable ultraviolet and infrared rays that may interfere with obtaining high-quality images possible with a digital sensor. The true optical quality glass substrate and coatings achieve greater detail, less chromatic aberration, more natural colors, and finer color gradation. The filter can be combined with any standard 1.25” filter threads for 1.25" eyepieces and other accessories to deliver the sharpest images possible, reducing ghost images caused by IR radiation. Additionally, it comes with a plastic box to keep it safe and clean when not in use. With SVBONY Filter, you can capture high-quality images with greater detail, natural colors, and finer color gradation while protecting your lens from unwanted rays.

What We Like
Blocks UV/IR rays
Permanent lens protector
True optical quality glass
#TOP 9

SVBONY Telescope Filter 1.25 inches Polarizing Filter

FUSF9147A
1.25 inch
SVBONY Telescope Filter 1.25 inches Polarizing Filter Cover
SVBONY Telescope Filter 1.25 inches Variable Polarizing Filter for Astronomical Telescope Eyepiece

The SVBONY Telescope Filter is a 1.25 inch polarizing filter designed for astronomical telescope eyepieces. It reduces the amount of light entering the eyepiece, enhances contrast of lunar detail and allows for maximum contrast of lunar and planetary images. The neutral colored optical glass preserves the moon's natural color and the filter thread is standard. With the ability to adjust light transmission from 1% to 80% by rotating the filter housing, users can achieve optimal performance and finer control of image brightness.

What We Like
Reduces glare and allows for clearer viewing of the moon's surface
Preserves the moon's natural color with neutral colored optical glass
Adjustable transmission control for finer control of image brightness
#TOP 10

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
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Are telescope filters worth it?

Yes, telescope filters are definitely worth investing in as they enhance your observing sessions and allow you to spot sights that are not easily visible with the naked eye or even with a telescope alone. Filters help you see details and features that would otherwise be difficult to detect, making them a valuable tool for astronomy enthusiasts.

2. When should you use a telescope filter?

Telescope filters are particularly useful when observing planets. They help improve the observation of planets by enhancing certain features and exaggerating brightness differences, which improves contrast. Using color filters can make it easier to see specific details on planets, making them a great addition to your telescope setup.

3. How do I choose the right filter?

When choosing a telescope filter, consider factors such as the size and model of the filter, whether it is an original or aftermarket filter, the air quality in your observing location, any specific breathing needs, the type of filter (e.g., color, neutral density, etc.), the filter's performance, and the cost of the filter and its replacement.

4. What happens if you look at the Sun through a telescope without a filter?

Looking at the Sun through a telescope without a proper filter can be extremely dangerous. The Sun's intense brightness can cause permanent damage to the retina, leading to vision loss or blindness. To observe the Sun safely, it is crucial to use a filter that blocks more than 99% of the Sun's light, ensuring the protection of your eyes.

Editor's Notes

During our telescope filter research, we found 16 telescope filter products and shortlisted 10 quality products. We collected and analyzed 37,034 customer reviews through our big data system to write the telescope filters list. We found that most customers choose telescope filters with an average price of $26.20.

The telescope filters are available for purchase. We have researched hundreds of brands and picked the top brands of telescope filters, including Celestron, SVBONY. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

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.