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  • Baader 36 mm LRGBC Filter Set
    Baader Planetarium Baader LRGBC CCD Filter Set - 36 mm Unmounted - FLRGBC-RD36
    $524.00
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  • Baader 36 mm Round LRGB Filter Set
    Baader Planetarium Baader LRGB CCD Filter Set - 36 mm Round Unmounted - FLRGB-RD36
    $477.00
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  • Baader SII 8nm Narrowband Filter - 36 mm Round
    Baader Planetarium Baader S-II 8 nm Narrowband CCD Filter - 36 mm Unmounted - FSIIN-RD36
    $188.00
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  • Baader OIII 8.5 nm Filter - 36 mm Unmounted
    Baader Planetarium Baader OIII 8.5 nm Narrowband CCD Filter - 36 mm Unmounted - FOIIIN-RD36
    $182.00
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  • Baader 36 mm H-alpha 7 nm Narrowband Filter
    Baader Planetarium Baader H-Alpha 7 nm Narrowband CCD Filter - 36 mm Unmounted - FHALN-RD36
    $195.00
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  • Baader Clear IR-Blocked Filter - 36 mm Round Unmounted
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 36 mm Unmounted
    $64.00
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  • Optolong Optolong OIII CCD 6.5nm Filter - 36mm Unmounted - OIIICCD65-36U
    $195.00
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  • Optolong SII Unmounted Filter
    Optolong Optolong SII CCD 12nm Filter - 36mm Unmounted - SIICCD12-36U
    $159.00 $127.00
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  • Optolong SII Unmounted Filter
    Optolong Optolong SII CCD 6.5nm Filter - 36mm Unmounted - SIICCD65-36U
    $199.00
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  • Optolong H-Alpha Unmounted Filter
    Optolong Optolong H-Alpha 7nm CCD Filter - 36mm Unmounted - HAL7-36U
    $193.00
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  • Optolong Optolong LRGB CCD Filter Set - 36mm Unmounted - LRGB-36U
    $299.00
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  • Optolong UVIR Cut Unmounted Filter
    Optolong Optolong UV-IR Cut Filter - 36mm Unmounted - UVIR-36U
    $56.00
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  • Astronomik 36 mm CLS-CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - 36 mm Round Mounted - CLSCCD-36
    $129.95
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  • Astronomik 36 mm Round Mounted MC Clear Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 36 mm Round Mounted - C-36
    $59.95
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  • Astronomik 36 mm CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - 36 mm Round Mounted - CLS-36
    $109.95
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  • Astronomik 36 mm Round Mounted H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 36 mm Round Mounted - HA12-36
    $189.95
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  • Astronomik LRGB Filter Set - 36 mm Round Mounted
    Astronomik Filters Astronomik LRGB Filter Set - 36 mm Round Mounted - LRGB-36
    $379.95
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  • Astronomik 36 mm Round Mounted UHC Filter
    Astronomik Filters Astronomik UHC Filter - 36 mm Round Mounted - UHC-36
    $129.95
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  • Astronomik 12 nm O-III CCD Filter - 36 mm Round Mounted
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 36 mm Round Mounted - OIIICCD-36
    $189.95
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  • Astronomik SII 12 nm CCD Filter - 36 mm Round Mounted
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 36 mm - SII-36
    $189.95
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  • Astronomik 36 mm Round Mounted L-1 UV-IR Blocking Luminance Filter
    Astronomik Filters Astronomik L-1 UV-IR Blocking Filter - 36 mm Round Mounted - L1-36
    $89.95
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  • Astronomik L-3 Luminance UV-IR Blocking Filter - 36 mm Round Mounted
    Astronomik Filters Astronomik L-3 UV-IR Blocking Filter - 36 mm Round Mounted - L3-36
    $89.95
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  • Astronomik ProPlanet 642 IR-Pass Filter - 36 mm Round Mounted
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 36 mm Round Mounted - P642-36
    $89.95
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  • Astronomik 36 mm Round Mounted ProPlanet 742 IR Pass Filter
    Astronomik Filters Astronomik ProPlanet 742 IR Pass Filter - 36 mm Round Mounted - P742-36
    $69.95
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  • Astronomik 36 mm Round Mounted ProPlanet IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 36 mm Round Mounted - P807-36
    $69.95
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  • Baader Planetarium 36 mm UHC-S L-Booster Filter - Round Mounted
    Baader Planetarium Baader UHC-S L-Booster Filter - 36 mm Round Unmounted - FUHC-RD36
    $104.00
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  • Baader Planetarium 36 mm Round Unmounted UV-IR Cut Luminance Filter
    Baader Planetarium Baader 36 mm UV-IR Cut L-Filter - FUVIR-RD36
    $96.00
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  • Optolong Optolong 36mm Unmounted Filter Set with LRGB, H-Alpha, SII, and OIII Filters - LRGB-HASIIOIII-36U
    $775.00
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  • Optolong Optolong 36mm Unmounted LRGB and 7nm H-Alpha Filter Set - LRGB-HA-36U
    $465.00
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  • Optolong Optolong 36mm Unmounted Filter Set with H-Alpha, SII, and OIII Filters - HASIIOIII-36U
    $557.00
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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 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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  • Astronomik UHC-E Filter - 36 mm Round Mounted
    Astronomik Filters Astronomik UHC-E Filter - 36 mm Round Mounted - UHCE-36
    $89.95
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  • Astronomik 36 mm Round Mounted Color Filter - Red
    Astronomik Filters Astronomik Red Type 2c Filter - 36 mm Round Mounted - R-36
    $109.95
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  • Astronomik 36 mm Round Mounted Color Filter - Green
    Astronomik Filters Astronomik Green Type 2c Filter - 36 mm Round Mounted - G-36
    $109.95
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  • Astronomik 36 mm Round Mounted Color Filter - Blue
    Astronomik Filters Astronomik Blue Type 2c Filter - 36 mm Round Mounted - B-36
    $109.95
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  • ZWO Astronomy Cameras ZWO LRGB Filter Set - 36mm Unmounted - LRGB-36
    $199.00
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  • ZWO Astronomy Cameras ZWO H-Alpha 7nm CCD Filter - 36mm - HA36
    $169.00
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  • ZWO Astronomy Cameras ZWO SII 7nm Filter - 36mm - SII36
    $169.00
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  • ZWO Astronomy Cameras ZWO OIII 7nm Filter - 36mm - OIII36
    $169.00
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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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