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Updated: 18 Apr 2026

10 Best Telescope Filters Aluminum

#1 Best Pick
POFET Astronomical Telescope Accessories 1" 1.25" Black Solar Filters Full Aluminum Standard Thread for Astro Optics Eyepiece

POFET Astronomical Telescope Accessories 1" 1.25" Black Solar Filters Full Aluminum Standard Thread for Astro Optics Eyepiece

Brand: POFET
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  • Durable quality: made of aluminum alloy, durable and long time use.
  • EASY TO CARRY Super lightweight and small in size, so you can carry it through easily.
  • Precise Observation The front focusing handwheel is equipped with a refraction adjustment ring on the eyepiece, which makes the focusing more precise.
  • Large diameter: high transparency and wide field of vision.
  • Good help for the telescope: makes it easier to navigate the night sky with a telescope.
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#2 Best Value
SVBONY 1.25 inch Moon Filter CPL Filter Five Color Filters Kit 7pcs Filters Set for Enhance Lunar Planetary Views Reduces Light Pollution Telescope Eyepiece Accessories

SVBONY 1.25 inch Moon Filter CPL Filter Five Color Filters Kit 7pcs Filters Set for Enhance Lunar Planetary Views Reduces Light Pollution Telescope Eyepiece Accessories

Brand: SVBONY
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  • 7pcs filters set include most popular color planetary and moon telescope eyepiece filters;moon filter;CPL filter;5 color filters with 23A bright red;21 orange;12 yellow;56 bright green;82A bright blue
  • CPL filter is mainly used for elimination of polarized;and enhances the contrast of the moon and planets in photographic images
  • 5 color filters are an essential tool of the lunar and planetary;with red;green;blue;orange and yellow highlight features on Mars;Jupiter;and Saturn
  • High quality aluminum alloy frame and optical glass with standard 1.25 filter threads suitable for 1.25 eyepieces and other accessories
  • Moon and skyglow filter;Cuts down glare and brings out much more surface detail and gives you better contrast; It is a multi-band pass filter transmitting a high percentage of light in the visual spectrum; Effectively filters out selective wavelengths of low-pressure sodium and other man-made sources typically used in street lighting
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#3 Budget Pick
Telescope Filter 1.25 Inch UV IR Cut Block Filter, Aluminum Alloy Material, Frame Stacking Structure, Multi-Layer Coating Optical Glass, Correct Color cast

Telescope Filter 1.25 Inch UV IR Cut Block Filter, Aluminum Alloy Material, Frame Stacking Structure, Multi-Layer Coating Optical Glass, Correct Color cast

Brand: Aerbeis
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  • 1.25 inch circular polarizing filter effectively eliminates reflected light without making these objects appear too bright or blurry
  • Improve the contrast and color saturation of images, especially in natural environments, such as making the sky appear bluer by reducing the polarized light scattered in the sky
  • Aluminum alloy frame, precision ground high-permeability optical glass, with clarity and color fidelity, lightweight and durable, and outer packaging made of environmentally friendly materials
  • Standard 1.25-inch filter, threaded (M28.5 x 0.6), filters can be connected in series to achieve different functions
  • Easy to install: the filter ring can be rotated to adjust the intensity of the polarization effect.Circular polarizers are ideal for use with digital cameras and autofocus lenses
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#4 Top Choice
Astromania Telescope Filter, 1.25 Inches Planetary Filter for Astronomy Telescope Eyepiece, Color Filter for Enhancing Contrast in Lunar Planetary Observation - #80A Blue

Astromania Telescope Filter, 1.25 Inches Planetary Filter for Astronomy Telescope Eyepiece, Color Filter for Enhancing Contrast in Lunar Planetary Observation - #80A Blue

Brand: Astromania
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  • Metal filter cell threads directly into the 1.25- inch barrel of your telescope eyepiece.
  • Mounted in a nicely anodized housing.
  • Perfectly neutral color will not alter the natural color of the Moon.
  • Enhances the contrast of the moon and planets in photographic images.
  • Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming.
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#5 Popular Choice
Variable Polarizing Filter for Astronomical Telescope, 1.25in Telescope Polarizing Filter, Variable Linear Double Optical Glass Telescope CPL Filter for Astronomical Telescope

Variable Polarizing Filter for Astronomical Telescope, 1.25in Telescope Polarizing Filter, Variable Linear Double Optical Glass Telescope CPL Filter for Astronomical Telescope

Brand: ASHATA
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  • PREMIUM MATERIALS AND CRAFTSMANSHIP: This CPL filter is made of anodized aluminum frame, precisely ground and highly polished to ensure durability.
  • ENHANCED CONTRAST: The use of two piece optical glass reduces the amount of light entering the eyepiece, thus increasing the contrast of the eyepiece. While viewing bright objects, such as the moon or certain planets, you can gradually darken the field of view to a level that simultaneously increases contrast, reduces glare, and increases the amount of viewable detail, depending on your needs.
  • REDUCED GLARE: The polarizing filter reduces glare by allowing only 13% of reflected light to be transmitted, which means you can view the lunar more clearly and study the moon more comfortably.
  • EASY TO USE: The polarizing filter has a standard M28.5x0.6 thread that is compatible with many telescopes. The 1.25inch polarizing filter is the universal lunar and planetary filter for starters.
  • ROTATING ADJUSTMENT: By rotating the filter housing, light transmission can be gradually adjusted from 1% to 80%, providing fine control over image brightness and performance as needed.
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#6 Top Pick
YUEHISY 1.25 Inch Telescope Moon Filter Kit for ND2 ND4 ND8 ND16 ND32 ND64,6 Pcs Aluminum Alloy Eyepiece Filter Set Case for Lunar Observation

YUEHISY 1.25 Inch Telescope Moon Filter Kit for ND2 ND4 ND8 ND16 ND32 ND64,6 Pcs Aluminum Alloy Eyepiece Filter Set Case for Lunar Observation

Brand: YUEHISY
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  • NEUTRAL DENSITY MOON FILTER: This 1.25 inch ND filter kit reduces moonlight glare while preserving true colors, enabling clear observation of lunar surface details, ideal for astronomers of all skill levels.
  • EYE LIGHT REDUCTION: With ND4 (25% transmission) and ND16 (6.25% transmission) filters, this telescope filter set minimizes harsh brightness to protect night vision, ensuring comfortable extended viewing sessions without eye strain.
  • MULTI COATED HD OPTICS: Professional grade acrylic lenses with multi layer coatings eliminate stray light and reflections, delivering clear, high contrast images with enhanced clarity for both visual and photographic use.
  • 1.25 INCH EYEPIECE COMPATIBILITY: This 1.25 Inch Telescope Moon Filter Kit designed for seamless installation on all standard 1.25 inch telescope eyepieces (M28.6x0.6mm thread), this plug and play kit works across major telescope brands.
  • IMPROVE IMAGE QUALITY: This 1.25 Inch Telescope Moon Filter Kit by reducing glare at the moon's terminator, these moon filters minimize optical aberrations and enhance three dimensional texture, making them essential tools for capturing realistic lunar photographs and observations.
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#7 Top Pick
1.25 inch Moon Filter,Aluminum Alloy Sky Glow & Moon Filter Optical Glass for Telescope Eyepiece Cuts Light Pollution

1.25 inch Moon Filter,Aluminum Alloy Sky Glow & Moon Filter Optical Glass for Telescope Eyepiece Cuts Light Pollution

Brand: Pomya
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  • The filter will fit all standard sized 1.25inch eyepieces and accessories.
  • Reduces glare and improves definition so you can see the moon's features.
  • A high quality eyepiece filter for reducing the brightness of the moon and improving contrast and surface detail.
  • A moon filter really makes a difference and at such a low cost is a must for every astronomer.
  • Bright, light-polluted skies appear much darker, and the contrast between object and sky is improved significantly. This contrast-enhancement effect is particularly apparent on nebulas.
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#8 Top Pick
Neewer 1.25 inches Telescope Moon Filter, CPL Filter, 5 Color Filters Set(Red, Orange, Yellow, Green, Blue), Eyepieces Filters for Enhancing Definition and Resolution in Lunar Planetary Observation

Neewer 1.25 inches Telescope Moon Filter, CPL Filter, 5 Color Filters Set(Red, Orange, Yellow, Green, Blue), Eyepieces Filters for Enhancing Definition and Resolution in Lunar Planetary Observation

Brand: NEEWER
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  • Hinweis: Das Teleskop ist nicht im Lieferumfang enthalten. Set beinhaltet: (1) Mond- und Skyglow-Filter; (1) CPL-Filter; (5) Farbfilter: Rot, Orange, Gelb, GrĂĽn, Blau; entwickelt, um Blendung und Streuung von Licht zu reduzieren, den Kontrast durch selektive Filtration zu erhöhen, die Definition und Auflösung zu erhöhen, die Bestrahlung zu reduzieren und die ErmĂĽdung der Augen zu verringern
  • Mond- und Skyglow-Filter: Reduziert Blendung und bringt viel mehr Details auf der Oberfläche hervor, gibt Ihnen einen besseren Kontrast; es ist ein Multiband-Passfilter, der einen hohen Prozentsatz an Licht im visuellen Spektrum ĂĽberträgt; filtert effektiv selektive Wellenlängen von Natrium bei niedrigem Druck und anderen kĂĽnstlichen Quellen, die normalerweise in der öffentlichen Beleuchtung verwendet werden
  • CPL-Filter: Durch die Verwendung eines CPL-Filters, der das Streulicht filtert, können Sie diese Reflexionen durchschneiden und die Details sehen, die sich dahinter verstecken; verbessert den Kontrast von Mond und Planeten in fotografischen Bildern
  • Normale Gewindegröße: Gewindegröße 3,17 cm, geeignet fĂĽr die meisten Teleskope; die Farbfilter haben die notwendigen Rillen, um leicht in die Linse des Okulars geschraubt zu werden
  • 5 farbige Filter: enthält Rot, Orange, Gelb, GrĂĽn, Blau; Rot: Hilft dabei, Merkur und Venus tagsĂĽber vom blauen Himmel hervorzuheben; Orange: Hilft dabei, den Kontrast zwischen hellen und dunklen Bereichen zu erhöhen, die in die Wolken eindringen; Gelb: hilft beim Beobachten des Mars durch die Hervorhebung der Polarkappen; GrĂĽn: verbessert Frostflecken und Nebel. Oberfläche und Spritzwasser Blau: zum Teilen des Doppelsterns Antares bei maximaler Trennung
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#9 Top Pick
SVBONY Telescope Filter 1.25 inches Linear Polarizer Filter Anodized Aluminum Optical Glass for Lunar Planetary Observing (1.25inch)

SVBONY Telescope Filter 1.25 inches Linear Polarizer Filter Anodized Aluminum Optical Glass for Lunar Planetary Observing (1.25inch)

Brand: SVBONY
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  • 1.25 inch moon filter reduce the amount of light entering the eyepiece and increase the eyepiece contrast
  • The moon filter reduces the glare;allowing transmission of only 13 percent of the reflected ligh;which means you can see the surface more clearly and study the Moon in greater comfort
  • Allow for maximum contrast of lunar detail enhances the contrast of the moon and planets in photographic images
  • Neutral colored optical glass does not change the moon's natural color
  • Have a standard 1.25 inch filter thread (M28.5 x 0.6);It's a great birthday christmas gift
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#10 Top Pick
SVBONY Polarizer Lens Filters Variable Polarizing Filter 1.25" Optical Glass Lens Aluminum Frame for Astronomic Telescope Eyepiece Standard M28.5 Thread

SVBONY Polarizer Lens Filters Variable Polarizing Filter 1.25" Optical Glass Lens Aluminum Frame for Astronomic Telescope Eyepiece Standard M28.5 Thread

Brand: SVBONY
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  • SVBONY 1.25” variable Polarizing filter acts like a dimmer switch for your telescope;reduces brightness of the Moon or planets;glare or reflections;improves the objects contrast for great clear viewing
  • Adjust the intensity of light transmission from 1% to 40% by rotating the filter housing;polarizers can reduce the brightness of the moon and planets to capture more observation details;no loss in contrast and say hello to the full moon without blinding yourself
  • Finer control of the image brightness compared to a standard fixed-transmission telescope filter for optimal performance;the polarizing filter adjustment is continuous;so that the best observation effect can be obtained
  • Fit any standard 1.25" eyepieces and accessories;being able to adjust a filter helps you match the relative brightness of the moon or the observe objects
  • Premium quality metal rim and optics glass lens;sturdy plastic case included;rotating it;you can increase or decrease light transmission through the lenses;easy to install and use
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