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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 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 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 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 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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  • Astronomik 50 mm Round LRGB Filter Set
    Astronomik Filters Astronomik LRGB Filter Set - 50 mm Round - LRGB-50R
    $569.95
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  • Astronomik OIII 12 nm CCD Filter - 50 mm Round
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 50 mm Round - OIIICCD-50R
    $299.95
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  • Astronomik 50 mm Round 6 nm OIII CCD Filter
    Astronomik Filters Astronomik OIII 6 nm CCD Filter - 50 mm Round - OIIICCD6-50R
    $469.95
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  • Astronomik 50 mm Round SII 12 nm CCD Filter
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 50 mm Round - SII-50R
    $299.95
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  • Astronomik 50 mm Round SII 6 nm CCD Filter
    Astronomik Filters Astronomik SII 6 nm CCD Filter - 50 mm Round - SII6-50R
    $469.95
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  • Astronomik 50 mm Round MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 50 mm Round - C-50R
    $59.95
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  • Astronomik 50 mm Round CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - 50 mm Round - CLS-50R
    $159.95
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  • Astronomik 50 mm Round CLS CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - 50 mm Round - CLSCCD-50R
    $199.95
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  • Astronomik 50 mm Deep Sky RGB Color Filters - Round
    Astronomik Filters Astronomik Deep Sky RGB Color Filter Set - 50 mm Round - DRGB-50R
    $579.95
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  • Astronomik 50 mm Round H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 50 mm Round - HA12-50R
    $299.95
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  • Astronomik 50 mm Round H-Alpha 6 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 50 mm Round - HA6-50R
    $469.95
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  • Astronomik L-1 UV-IR Blocking Luminance Filter - 50 mm Round
    Astronomik Filters Astronomik L-1 UV-IR Blocking Filter - 50 mm Round - L1-50R
    $129.95
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  • Astronomik L-2 UV-IR Blocker - 50 mm Round Filter
    Astronomik Filters Astronomik L-2 UV-IR Blocking Filter - 50 mm Round - L2-50R
    $109.95
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  • Astronomik 50 mm Round L-3 UV-IR Blocking Filter
    Astronomik Filters Astronomik L-3 UV-IR Blocking Filter - 50 mm Round - L3-50R
    $129.95
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  • Astronomik 50x50 mm MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 50 mm Square - C-50SQ
    $89.95
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  • Astronomik CLS Light Pollution Filter - 50x50 mm Square
    Astronomik Filters Astronomik CLS Light Pollution Filter - 50 mm Square - CLS-50SQ
    $189.95
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  • Astronomik 50x50 mm CLS CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - 50 mm Square - CLSCCD-50SQ
    $249.95
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  • Astronomik 50 mm Square H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 50 mm Square - HA12-50SQ
    $329.95
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  • Astronomik H-Alpha 6 nm CCD Filter - 50x50 mm
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 50 mm Square - HA6-50SQ
    $499.95
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  • Astronomik L-1 Luminance UV-IR Blocking Filter - 50 mm Square
    Astronomik Filters Astronomik L-1 UV-IR Blocking Filter - 50 mm Square - L1-50SQ
    $179.95
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  • Astronomik UV-IR Blocking L-2 Luminance Filter - 50x50 mm
    Astronomik Filters Astronomik L-2 UV-IR Blocking Filter - 50 mm Square - L2-50SQ
    $149.95
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  • Astronomik L-3 Luminance UV-IR Blocking Filter - 50x50 mm
    Astronomik Filters Astronomik L-3 UV-IR Blocking Filter - 50 mm Square - L3-50SQ
    $179.95
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  • Astronomik 50 mm x 50 mm OIII 12 nm CCD Filter
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 50 mm Square - OIIICCD-50SQ
    $329.95
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  • Astronomik 50 mm Square OIII 6 nm CCD Filter
    Astronomik Filters Astronomik OIII 6 nm CCD Filter - 50 mm Square - OIIICCD6-50SQ
    $499.95
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  • Astronomik 50 mm ProPlanet 642 IR-Pass Filter - Round
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 50 mm Round - P642-50R
    $129.95
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  • Astronomik 50x50 mm ProPlanet 642 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 50 mm Square - P642-50SQ
    $159.95
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  • Astronomik 50 mm x 50 mm SII 12 nm CCD Filter
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 50 mm Square - SII-50SQ
    $329.95
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  • Astronomik SII 6 nm CCD 50 mm Square Filter
    Astronomik Filters Astronomik SII 6 nm CCD Filter - 50 mm Square - SII6-50SQ
    $499.95
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  • Astronomik 50 mm Round UHC Filter
    Astronomik Filters Astronomik UHC Filter - 50 mm Round - UHC-50R
    $199.95
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  • Astronomik 50x50 mm UHC Filter
    Astronomik Filters Astronomik UHC Filter - 50 mm Square - UHC-50SQ
    $249.95
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  • Astronomik Luminance Filter Type 2C - 50 mm Round Mounted
    Astronomik Filters Astronomik Luminance Filter Type 2C - 50 mm Round Mounted - L-50R
    $99.95 $84.95
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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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