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  • Baader 50 mm Square LRGBC Filter Set
    Baader Planetarium Baader LRGBC CCD Filter Set - 50 mm Square Unmounted - FLRGBC-SQ50
    $849.00
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  • Baader 65 mm Square LRGBC Filter Set
    Baader Planetarium Baader LRGBC CCD Filter Set - 65 mm Square Unmounted - FLRGBC-SQ65
    $1,029.00
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  • Baader 65 mm Square LRGB Filter Set
    Baader Planetarium Baader LRGB CCD Filter Set - 65 mm Square Unmounted - FLRGB-SQ65
    $949.00
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  • Baader 50 mm Square LRGB Filter Set
    Baader Planetarium Baader LRGB CCD Filter Set - 50 mm Square Unmounted - FLRGB-SQ50
    $789.00
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  • Baader SII 8nm Narrowband Filter - 50 mm Square
    Baader Planetarium Baader S-II 8 nm Narrowband CCD Filter - 50 mm Square Unmounted - FSIIN-SQ50
    $360.00
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  • Baader SII 8nm Narrowband Filter - 65 mm Square
    Baader Planetarium Baader S-II 8 nm Narrowband CCD Filter - 65 mm Square Unmounted - FSIIN-SQ65
    $479.00
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  • Baader OIII 8.5 nm Filter - 50 mm Square Unmounted
    Baader Planetarium Baader OIII 8.5 nm Narrowband CCD Filter - 50 mm Square Unmounted - FOIIIN-SQ50
    $374.00
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  • Baader OIII 8.5 nm Filter - 65 mm Square Unmounted
    Baader Planetarium Baader OIII 8.5 nm Narrowband CCD Filter - 65 mm Square Unmounted - FOIIIN-SQ65
    $492.00
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  • Baader 50 mm Square Unmounted H-alpha 7 nm Narrowband Filter
    Baader Planetarium Baader H-Alpha 7 nm Narrowband CCD Filter - 50 mm Square Unmounted - FHALN-SQ50
    $419.00
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  • Baader 65 mm Square Unmounted H-alpha 7 nm Narrowband Filter
    Baader Planetarium Baader H-Alpha 7 nm Narrowband CCD Filter - 65 mm Square Unmounted - FHALN-SQ65
    $523.00
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  • Baader 50 mm Square Unmounted UHC-S L Booster Filter
    Baader Planetarium Baader UHC-S Nebula Filter - L Booster - 50 mm Square Unmounted - FUHC-SQ50
    $226.00
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  • Baader 50 mm Square Unmounted UV-IR Cut/L Filter
    Baader Planetarium Baader UV-IR-Cut L Filter - 65 mm Square Unmounted - FUVIR-SQ65
    $267.00
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  • Baader Giant UV-IR Cut Filter for Pro Movie Cameras (1.25
    Baader Planetarium Baader UV-IR-Cut L Filter - 101 mm x 143 mm Square Unmounted - FUVIR-SQ100
    $499.00
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  • Baader 50 mm Square Unmounted 35 nm H-Alpha CCD Filter
    Baader Planetarium Baader 35 nm Midband H-Alpha CCD Filter - 50 mm Square Unmounted - FHAL-SQ50
    $264.00
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  • Baader 50 mm Square 3.5 nm H-Alpha Enforced Narrowband Filter
    Baader Planetarium Baader 3.5 nm H-Alpha Enforced Narrowband CCD Filter - 50 mm Square Unmounted - FHALNE-SQ50
    $640.00
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  • Baader 8.5 nm H-Beta Filter - 50 mm Square
    Baader Planetarium Baader 8.5 nm H-Beta Narrowband CCD Filter - 50 mm Square Unmounted - FHBN-SQ50
    $399.00
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  • Baader Clear IR-Blocked Filter - 50 mm Square
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 50 mm Square Unmounted
    $121.00
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  • Baader Clear IR-Blocked Filter - 65 mm Square
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 65 mm Square Unmounted
    $138.00
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  • Astronomik 50x50 mm MC Clear Glass Filter - Unmounted
    Astronomik Filters Astronomik MC Clear Glass Filter - 50 mm Square Unmounted - C-50SQ
    $89.95
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  • Astronomik CLS Light Pollution Filter - 50x50 mm Square Unmounted
    Astronomik Filters Astronomik CLS Light Pollution Filter - 50 mm Square Unmounted - CLS-50SQ
    $189.95
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  • Astronomik 50x50 mm Unmounted CLS CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - 50 mm Square Unmounted - CLSCCD-50SQ
    $249.95
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  • Astronomik 50 mm Square Unmounted H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 50 mm Square Unmounted - HA12-50SQ
    $329.95
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  • Astronomik H-Alpha 6 nm CCD Filter - 50x50 mm Unmounted
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 50 mm Square Unmounted - HA6-50SQ
    $499.95
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  • Astronomik L-1 Luminance UV-IR Blocking Filter - 50 mm Square Unmounted
    Astronomik Filters Astronomik L-1 UV-IR Blocking Filter - 50 mm Square Unmounted - L1-50SQ
    $179.95
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  • Astronomik UV-IR Blocking L-2 Luminance Filter - 50x50 mm Unmounted
    Astronomik Filters Astronomik L-2 UV-IR Blocking Filter - 50 mm Square Unmounted - L2-50SQ
    $149.95
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  • Astronomik L-3 Luminance UV-IR Blocking Filter - 50x50 mm Unmounted
    Astronomik Filters Astronomik L-3 UV-IR Blocking Filter - 50 mm Square Unmounted - L3-50SQ
    $179.95
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  • Astronomik 50 mm x 50 mm Unmounted OIII 12 nm CCD Filter
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 50 mm Square Unmounted - OIIICCD-50SQ
    $329.95
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  • Astronomik 50x50 mm Unmounted ProPlanet 642 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 50 mm Square Unmounted - P642-50SQ
    $159.95
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  • Astronomik 50 mm x 50 mm Unmounted SII 12 nm CCD Filter
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 50 mm Square Unmounted - SII-50SQ
    $329.95
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  • Astronomik SII 6 nm CCD 50 mm Square Unmounted Filter
    Astronomik Filters Astronomik SII 6 nm CCD Filter - 50 mm Square Unmounted - SII6-50SQ
    $499.95
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  • Astronomik 50x50 mm Unmounted UHC Filter
    Astronomik Filters Astronomik UHC Filter - 50 mm Square Unmounted - UHC-50SQ
    $249.95
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  • Astronomik 50 mm Square Unmounted Deep Sky RGB Color Filter Set
    Astronomik Filters Astronomik Deep Sky RGB Color Filter Set - 50 mm Square Unmounted - DRGB-50SQ
    $699.95
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  • Astronomik 50 mm Square Unmounted Red, Green, and Blue Filters
    Astronomik Filters Astronomik LRGB Filter Set - 50 mm Square Unmounted - LRGB-50SQ
    $599.95
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  • Baader 50 x 50 mm Square Unmounted UV-IR Cut Luminance Filter
    Baader Planetarium Baader Planetarium 50 mm Square UV-IR Cut L-Filter - FUVIR-SQ50
    $219.00
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  • Astrodon Astrodon Gen2 E-Series LRGB Tru-Balance Filter Set - 49.7 mm Square Unmounted - LRGB2-E50S
    $1,421.00
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  • Astrodon Square Unmounted Sloan Generation 2 Edge-Blackened U Filter - 49.7 mm x 49.7 mm
    Astrodon Astrodon Photometric Sloan Gen2 U Filter - 320/385 nm - 49.7 mm Square Unmounted - U2-50S
    $550.00
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  • Astrodon 49.7 mm Square Unmounted Edge-Blackened Photometric Sloan Gen2 G Filter
    Astrodon Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 49.7 mm Square Unmounted - G2-50S
    $550.00
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  • Astrodon Edge-Blackened 49.7 mm Square Unmounted Photometric Sloan Generation 2 R Filter
    Astrodon Astrodon Photometric Sloan Gen2 R Filter - 562/695 nm - 49.7 mm Square Unmounted - R2-50S
    $550.00
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  • Astrodon Edge-Blackened Photometric Sloan Gen2 I Filter - 49.7 x 49.7 mm Unmounted
    Astrodon Astrodon Photometric Sloan Gen2 I Filter - 695/844 nm - 49.7 mm Square Unmounted - I2-50S
    $550.00
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  • Astrodon 49.7 mm Square Unmounted Sloan Generation 2 Photometric Y Filter - Edge-Blackened
    Astrodon Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 49.7 mm Square Unmounted - Y2-50S
    $550.00
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Your new telescope finally arrived- you opened the box and assembled the scope as carefully as you can. Once darkness falls, the first thing you do is point it up at the Moon and look into the eyepiece. Wow. But if you can imagine, the Moon actually can appear better than that when properly filtered. Telescopes have the ability to attach filters for many different purposes - some of the most common filters are for looking at the Moon, Planets, and Sun.


Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Different filters will act differently, highlighting a rainbow of wavelengths to enhance a variety of features in the night sky.


We offer deep sky filters and planetary filters from Lumicon, Baader Planetarium, Celestron, TeleVue, Meade, Orion, High Point & Thousand Oaks. Telescope filters will add to the performance of virtually any telescope and are a highly recommended telescope accessory. Feel free to contact one of our telescope experts for advice on selecting the filter assortment that is right for you.

High Point Scientific is rated 4.9/5 based on 1347 reviews

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