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  • Astrodon 36 mm Round Unmounted Luminance Gen2 UV/NIR Block Filter
    Astrodon Astrodon Luminance Gen2 UV/NIR Blocking Filter - 36 mm Round Unmounted - L2-36R
    $242.00
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  • Astrodon I-Series 1.25
    Astrodon Astrodon Gen2 I-Series LRGB Tru-Balance Filter Set - 1.25" Threaded Cell - LRGB2-I27R
    $547.00
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  • Astrodon Generation 2 I-Series Tru-Balance LRGB Filter Set - 31 mm Unthreaded Insert
    Astrodon Astrodon Gen2 I-Series LRGB Tru-Balance Filter Set - 31 mm Unthreaded Insert - LRGB2-I31R
    $615.00
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  • Astrodon 36 mm Round Unmounted Gen2 I-Series LRGB Tru-Balance Filters
    Astrodon Astrodon Gen2 I-Series LRGB Tru-Balance Filter Set - 36 mm Round Unmounted - LRGB2-I36R
    $790.00
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  • Astrodon 50 mm Round Unmounted Generation 2 I-Series LRGB Tru-Balance Filter Set
    Astrodon Astrodon Gen2 I-Series LRGB Tru-Balance Filter Set - 49.7 mm Round Unmounted - LRGB2-I50R
    $1,188.00
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  • Astrodon 50 mm Round Unmounted Luminance Gen2 UV/NIR Block Filter
    Astrodon Astrodon Luminance Gen2 UV/NIR Blocking Filter - 49.7 mm Round Unmounted - L2-50R
    $318.00
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  • Astrodon Edge-Blackened Sloan Generation 2 Filters with Transmission Chart
    Astrodon Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 1.25" Threaded Cell - G2-27R
    $212.00
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  • Astrodon Edge-Blackened Sloan Generation 2 Filters
    Astrodon Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 1.25" Threaded Cell - Y2-27R
    $212.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm H-Alpha Narrowband Filter - 49.7 mm Round Unmounted - HA5-50R
    $870.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm SII Narrowband Filter - 49.7 mm Round Unmounted - SII5-50R
    $870.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm OIII Narrowband Filter - 49.7 mm Round Unmounted - OIII5-50R
    $870.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins UV Filter - 1.25" Threaded Cell - UV-27R
    $216.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins B Filter - 1.25" Threaded Cell - B-27R
    $216.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins V Filter - 1.25" Threaded Cell - V-27R
    $216.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins Rc Filter - 1.25" Threaded Cell - RC-27R
    $216.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins Ic Filter - 1.25" Threaded Cell - IC-27R
    $216.00
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  • Astrodon ExoPlanet Light Curve Filter with Blue Blocking
    Astrodon Astrodon Exo-Planet Clear Filter with Blue Blocking - 1.25" Threaded Cell - XOPBB-27R
    $185.00
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  • Astrodon UVenus UV Imaging Filter
    Astrodon Astrodon UVenus UV Imaging Filter - 49.7 mm Round Unmounted - UVENUS-50R
    $462.00
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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 Edge-Blackened Sloan Generation 2 G Filter - 49.7 mm Round Unmounted
    Astrodon Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 49.7 mm Round Unmounted - G2-50R
    $500.00
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  • Astrodon 49.7 mm Edge-Blackened Photometrics Sloan Gen2 Y Filter - Round, Unmounted
    Astrodon Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 49.7 mm Round Unmounted - Y2-50R
    $500.00
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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 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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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm H-Alpha Narrowband Filter - 49.7 mm Square Unmounted - HA5-50S
    $1,024.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm SII Narrowband Filter - 49.7 mm Square Unmounted - SII5-50S
    $1,024.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm OIII Narrowband Filter - 49.7 mm Square Unmounted - OIII5-50S
    $1,024.00
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  • Astrodon Generation 2 E-Series 1.25
    Astrodon Astrodon Gen2 E-Series LRGB Tru-Balance Filter Set - 1.25" Threaded Cell - LRGB2-E27R
    $547.00
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  • Astrodon Generation 2 E-Series Tru-Balance LRGB Filter Set - 31 mm Unthreaded Insert
    Astrodon Astrodon Gen2 E-Series LRGB Tru-Balance Filter Set - 31 mm Unthreaded Insert - LRGB2-E31R
    $615.00
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  • Astrodon UVenus UV Imaging Filter
    Astrodon Astrodon UVenus UV Imaging Filter - 1.25" Threaded Cell - UVENUS-27R
    $209.00
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  • Astrodon Luminance Gen2 UV/NIR Blocking Filter - 1.25
    Astrodon Astrodon Luminance Gen2 UV/NIR Blocking Filter - 1.25" Threaded Cell - L2-27R
    $184.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm H-Alpha Narrowband Filter - 1.25" Threaded Cell - HA5-27R
    $380.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 3 nm H-Alpha Narrowband Filter - 1.25" Threaded Cell - HA3-27R
    $564.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm OIII Narrowband Filter - 1.25" Threaded Cell - OIII5-27R
    $380.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 3 nm OIII Narrowband Filter - 1.25" Threaded Cell - OIII3-27R
    $564.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 5 nm SII Narrowband Filter - 1.25" Threaded Cell - SII5-27R
    $380.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 3 nm SII Narrowband Filter - 1.25" Threaded Cell - SII3-27R
    $564.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 3 nm SII Narrowband Filter - 49.7 mm Square Unmounted - SII3-50S
    $1,438.00
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  • Astrodon Narrowband Filters
    Astrodon Astrodon 3 nm OIII Narrowband Filter - 49.7 mm Square Unmounted - OIII3-50S
    $1,438.00
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  • Astrodon Johnson-Cousins UVBRI Photometric Filters
    Astrodon Astrodon Photometric Johnson-Cousins UV Filter - 49.7 mm Round Unmounted - UV-50R
    $500.00
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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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