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Let our non-commissioned product advisors help you select the best filter to achieve your observation goals! Whether you need filters for astrophotography or visual use we'll help you find the perfect filter to complement your equipment.


Bring out as much detail as possible in your celestial targets with OIII, ultra high contrast, and hydrogen filters perfect for astrophotography. Or get more details on planets with neutral density, Skyglow, Longpass and color filters. We offer high-quality deep sky and planetary filters from manufacturers like Lumicon, Baader Planetarium, Celestron, TeleVue, Meade, Orion, High Point & Thousand Oaks.

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  • Astronomik 1.25
    Astronomik Filters Astronomik ProPlanet 742 IR Pass Filter - 1.25" - P742-1
    $49.95
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  • Astronomik ProPlanet 742 IR-Pass Filter - 2
    Astronomik Filters Astronomik ProPlanet IR - 742 Filter - 2" Round Mounted - P742-2
    $99.95
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  • Astronomik 1.25
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 1.25" Round Mounted - P807-1
    $49.95
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  • Astronomik ProPlanet 642 BP IR-Pass EOS Clip Filter
    Astronomik Filters Astronomik ProPlanet 642 BP IR-Pass Filter - EOS Clip - P642-EOS
    $109.95
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  • Astronomik 1.25 Round Mounted ProPlanet 642 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 1.25" Round Mounted - P642-1
    $65.95
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  • Astronomik 2
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 2" Round Mounted - P642-2
    $139.95
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  • Astronomik 31 mm Round ProPlanet 642 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 31 mm Round - P642-31
    $79.95
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  • Astronomik ProPlanet 642 IR-Pass Filter - 36 mm Round
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 36 mm Round - P642-36
    $89.95
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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 ProPlanet 642 IR-Pass SCT Rear Cell Mounted Filter
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - SCT Rear Cell - P642-SCT
    $139.95
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  • Astronomik ProPlanet 642 IR-Pass Filter - T-Thread Mounted
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - T-Mount - P642-T
    $119.95
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  • Astronomik ProPlanet 642 IR-Pass Filter - EOS XL Full Frame Clip
    Astronomik Filters Astronomik ProPlanet 642 IR Pass EOS XL Full Frame Clip Filter - P642-EOSXL
    $149.95
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  • Astronomik ProPlanet 742 IR-Pass 31 mm Round Filter
    Astronomik Filters Astronomik ProPlanet 742 IR Pass Filter - 31 mm Round - P742-31
    $59.95
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  • Astronomik 36 mm Round ProPlanet 742 IR Pass Filter
    Astronomik Filters Astronomik ProPlanet 742 IR Pass Filter - 36 mm Round - P742-36
    $69.95
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  • Astronomik ProPlanet 742 IR-Pass Filter - T-Mount
    Astronomik Filters Astronomik ProPlanet 742 IR Pass Filter - T-Mount - P742-T
    $85.95
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  • Astronomik ProPlanet 742 IR-Pass Filter - EOS APS Clip
    Astronomik Filters Astronomik ProPlanet 742 IR Pass EOS Clip Filter - P742-EOS
    $89.95
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  • Astronomik ProPlanet 742 IR-Pass Filter - EOS XL Full Frame Clip
    Astronomik Filters Astronomik ProPlanet 742 IR Pass EOS XL Full Frame Clip Filter - P742-EOSXL
    $99.95
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  • Astronomik 2
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 2" Round Mounted - P807-2
    $99.95
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  • Astronomik ProPlanet 807 IR-Pass Filter - 31 mm Round
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 31 mm Round - P807-31
    $55.95
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  • Astronomik 36 mm Round ProPlanet 807 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 36 mm Round - P807-36
    $69.95
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  • Astronomik T-Thread Mounted ProPlanet 807 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - T-Mount - P807-T
    $85.95
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  • Astronomik ProPlanet 807 IR-Pass Filter - EOS APS Clip Format
    Astronomik Filters Astronomik ProPlanet 807 IR Pass EOS Clip Filter - P807-EOS
    $79.95
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  • Astronomik ProPlanet 807 IR-Pass Filter - EOS XL Full Frame Clip Format
    Astronomik Filters Astronomik ProPlanet 807 IR Pass EOS XL Full Frame Clip Filter - P807-EOSXL
    $99.95
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  • Astronomik ProPlanet 642 IR-Pass Filter for Canon EOS M Series Cameras
    Astronomik Filters Astronomik ProPlanet 642 BP IR-Pass Filter - EOS M Clip - P642-EOS-M
    $119.95
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  • Astronomik P642 IR-Pass Sony Alpha 7 Clip Filter
    Astronomik Filters Astronomik ProPlanet 642 BP IR-Pass Filter - Sony Alpha 7 Clip - P642-SONY
    $159.95
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  • Astronomik ProPlanet 742 IR-Pass Filter for Canon EOS M Series Cameras
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass Filter - EOS M Clip - P742-EOS-M
    $95.95
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  • Astronomik ProPlanet 742 IR-Pass Sony Alpha 7 Clip Filter
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass Filter - Sony Alpha 7 Clip - P742-SONY
    $119.95
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  • Astronomik 50 mm Round ProPlanet 742 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass Filter - 50 mm Round - P742-50R
    $99.95
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  • Astronomik 50x50 mm ProPlanet 742 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass Filter - 50 mm Square - P742-50SQ
    $109.95
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  • Astronomik 27 mm Round ProPlanet 742 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass Filter - 27 mm Round - P742-27
    $45.95
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  • Astronomik ProPlanet 642 IR-Pass Filter - 27 mm Round
    Astronomik Filters Astronomik ProPlanet 642 IR Pass Filter - 27 mm Round - P642-27
    $59.95
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  • Astronomik ProPlanet 807 IR-Pass Filter for Canon EOS M Series Cameras
    Astronomik Filters Astronomik ProPlanet 807 IR-Pass Filter - EOS M Clip - P807-EOS-M
    $95.95
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  • Astronomik ProPlanet 807 IR-Pass Filter for Sony Alpha 7 Series Cameras
    Astronomik Filters Astronomik ProPlanet 807 IR-Pass Filter - Sony Alpha 7 Clip - P807-SONY
    $119.95
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  • Astronomik 50 mm Round ProPlanet 807 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 50 mm Round - P807-50R
    $99.95
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  • Astronomik ProPlanet 807 IR Filter - SCT Rear Cell
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - SC Rear Cell - P807-SCT
    $89.95
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  • Astronomik 27 mm Round ProPlanet 807 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 27 mm Round - P807-27
    $45.95
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    free shipping
  • Astronomik 50 mm x 50 mm ProPlanet 807 IR-Pass Filter
    Astronomik Filters Astronomik ProPlanet 807 IR Pass Filter - 50 mm Square - P807-50SQ
    $109.95
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  • Astronomik ProPlanet 742 IR-Pass Filter for Canon EOS Series Cameras - XT Clip
    Astronomik Filters Astronomik ProPlanet 742 IR-Pass EOS XT Clip Filter - P742-EOS-XT
    $99.95
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  • Astronomik ProPlanet 742 IR Nikon XL Full Frame Clip Filter
    Astronomik Filters Astronomik ProPlanet 742 IR Filter - Nikon XL Full Frame Clip - P742-NIKXL
    $119.95
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