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  • Lumicon Lumicon 1.25" Night Sky Hydrogen - Alpha (Ha) Filter - LF3085
    $55.00
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  • Lumicon Lumicon 82 mm Night Sky Hydrogen - Alpha (Ha) Filter - LF3115
    $450.00
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  • Ha Filter Installed in T-Ring on EOS Camera (camera not included)
    Baader Planetarium Baader EOS Protective Wide T-Ring with 7nm H-Alpha Filter - DSLRT-HA
    $357.00
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  • Astronomik 1.25
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 1.25" Round Mounted - HA12-1
    $129.95
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  • Astronomik 2
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 2" Round Mounted - HA12-2
    $289.95
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  • Astronomik H-Alpha 12 nm EOS Clip Filter
    Astronomik Filters Astronomik H-Alpha 12 nm EOS Clip Filter - HA12-EOS
    $189.95
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  • Astronomik 6 nm H-Alpha Filter in 1.25
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 1.25" Round Mounted - HA6-1
    $199.95
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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 50.4 mm Round Unmounted H-alpha 7 nm Narrowband Filter
    Baader Planetarium Baader H-Alpha 7 nm Narrowband CCD Filter - 50.4 mm Round Unmounted - FHALN-RD50
    $354.00
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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 50.4 mm Round Unmounted 35 nm H-Alpha CCD Filter
    Baader Planetarium Baader 35 nm Midband H-Alpha CCD Filter - 50.4 mm Round Unmounted - FHAL-RD50
    $214.00
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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 H-alpha High Speed f/2 CCD Filter
    Baader Planetarium Baader f/2 High Speed H-Alpha CCD Filter - 1.25" Mounted - FHALHS-1
    $257.00
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  • Baader H-alpha High Speed f/2 CCD Filter
    Baader Planetarium Baader f/2 High Speed H-Alpha CCD Filter - 2" Mounted - FHALHS-2
    $389.00
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  • Baader 2
    Baader Planetarium Baader 3.5 nm H-Alpha Enforced Narrowband CCD Filter - 2" Mounted - FHALNE-2
    $537.00
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  • Baader 50.4 mm Round 3.5 nm H-Alpha Enforced Narrowband Filter
    Baader Planetarium Baader 3.5 nm H-Alpha Enforced Narrowband CCD Filter - 50.4 mm Round Unmounted - FHALNE-RD50
    $582.00
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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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  • Optolong Optolong H-Alpha 7nm CCD Filter - 1.25" Mounted - HAL7-125
    $175.00
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  • Optolong Optolong H-Alpha 7nm CCD Filter - 2" Mounted - HAL7-200
    $259.00
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  • Optolong Optolong Night Sky H-Alpha Filter - 1.25" Mounted - NSHA-125
    $79.00
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  • Optolong Optolong Night Sky H-Alpha Filter - 2" Mounted - NSHA-200
    $119.00
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  • Optolong H-Alpha Unmounted Filter
    Optolong Optolong H-Alpha 7nm CCD Filter - 31mm Unmounted - HAL7-31U
    $190.00
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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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  • ZWO Astronomy Cameras ZWO H-Alpha 7nm CCD Filter - 1.25" - HA125
    $129.00
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  • ZWO Astronomy Cameras ZWO H-Alpha 7nm CCD Filter - 31mm - HA31
    $149.00
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  • ZWO Astronomy Cameras ZWO H-Alpha 7nm CCD Filter - 36mm - HA36
    $169.00
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  • Astronomik 31 mm Round H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 31 mm Round - HA12-31
    $169.95
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  • Astronomik 36 mm Round H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 36 mm Round - HA12-36
    $189.95
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  • Astronomik H-Alpha 12 nm EOS XL Full Frame Clip Filter
    Astronomik Filters Astronomik H-Alpha 12 nm EOS XL Full Frame Clip Filter - HA12-EOSXL
    $319.95
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  • Astronomik H-Alpha 12 nm T-Mount CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - T-Mount - HA12-T
    $269.95
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  • Astronomik 6 nm H-Alpha Filter in 2
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 2" Round Mounted - HA6-2
    $469.95
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  • Astronomik 6 nm H-Alpha Filter in 31 mm Format
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 31 mm Round - HA6-31
    $249.95
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  • Astronomik 6 nm H-Alpha Filter in 36 mm Format
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - 36 mm Round - HA6-36
    $289.95
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  • Astronomik 6 nm H-Alpha T-Thread CCD Filter
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - T-Mount - HA6-T
    $419.95
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  • Astronomik 6 nm H-Alpha EOS Clip Filter
    Astronomik Filters Astronomik H-Alpha 6 nm EOS Clip Filter - HA6-EOS
    $289.95
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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 H-Alpha 12 nm CCD Filter - SCT Rear Cell
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - SCT Rear Cell - HA12-SCT
    $289.95
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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 H-Alpha 6 nm SC Rear Cell CCD Filter
    Astronomik Filters Astronomik H-Alpha 6 nm CCD Filter - SCT Rear Cell - HA6-SCT
    $479.95
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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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