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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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  • Baader Planetarium Baader EOS Protective Wide T-Ring with Clear Filter - DSLRT-CLR
    $143.00
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  • Baader Clear IR-Blocked Filter - 1.25
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 1.25"
    $49.00
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  • Baader Clear IR-Blocked Filter - 2
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 2" Mounted
    $89.00
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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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  • Baader Clear IR-Blocked Filter - 50.4 mm Round Unmounted
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 50.4 mm Round Unmounted
    $104.00
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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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  • Baader Clear IR-Blocked Filter - 65 mm Square
    Baader Planetarium Baader Clear (C) IR-Blocked Focusing Filter - 65 mm Square Unmounted
    $138.00
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  • Optolong Optolong Clear Focusing Filter - 1.25" Mounted - CFF-125
    $24.00
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    free shipping
  • Optolong Optolong Clear Focusing Filter - 2" Mounted - CFF-200
    $31.00
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    free shipping
  • Astronomik 36 mm Round MC Clear Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 36 mm Round - C-36
    $59.95
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    free shipping
  • Astronomik 1.25
    Astronomik Filters Astronomik MC Clear Glass Filter - 1.25" Round Mounted - C-1
    $39.95
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    free shipping
  • Astronomik 2
    Astronomik Filters Astronomik MC Clear Glass Filter - 2" Round Mounted - C-2
    $69.95
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    free shipping
  • Astronomik 31 mm Round Mounted MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 31 mm Round - C-31
    $49.95
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    free shipping
  • 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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    free shipping
  • Astronomik MC Clear Glass EOS Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - EOS Clip - C-EOS
    $69.95
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    free shipping
  • Astronomik MC Clear Glass EOS XL Full Frame Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - EOS XL Full Frame Clip - C-EOSXL
    $79.95
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    free shipping
  • Astronomik MC Clear Filter - SC Rear Cell
    Astronomik Filters Astronomik MC Clear Glass Filter - SCT Rear Cell - C-SCT
    $69.95
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    free shipping
  • Astronomik MC Clear Glass T-Mount Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - T-Mount - C-T
    $65.95 $52.76
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    free shipping
  • 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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    free shipping
  • Optolong Optolong Clear Sky Filter - 77mm Round Mounted - CS-77
    $207.00
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    free shipping
  • Optolong Optolong Clear Sky Filter - 82mm Round Mounted - CS-82
    $259.00
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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 49.7 mm Round Unmounted Clear Filter with UV Blocking Only (No NIR Blocking)
    Astrodon Astrodon Clear Filter with UV-Blocking Only - 49.7 mm Round Unmounted - C2-50R
    $311.00
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  • Astrodon 49.7 mm Round Unmounted Clear Filter with UV Blocking Only (No NIR Blocking)
    Astrodon Astrodon Clear Filter with UV-Blocking Only - 49.7 mm Square Unmounted - C2-50S
    $368.00
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  • Astronomik 27 mm Round MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 27 mm Round - C-27
    $35.95
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  • Astronomik MC Clear Glass EOS M Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Clip Filter for Canon EOS M Series Cameras - C-EOS-M
    $89.95
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  • Astronomik MC Clear Glass Sony Alpha 7 Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Sony Alpha 7 Clip Filter - C-SONY
    $109.95
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  • Astronomik MC Clear Glass Filter - XT EOS Clip
    Astronomik Filters Astronomik MC Clear Glass EOS XT Clip Filter - C-EOS-XT
    $89.95
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  • Astronomik MC Clear Glass Clip Filter for Canon EOS 5D DSLR Cameras
    Astronomik Filters Astronomik MC Clear Glass Clip Filter for Canon EOS 5D Mk2 and 5D Mk3 DSLR Cameras - C-EOS-5D
    $79.95
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  • Astrodon Astrodon Clear Filter with UV-Blocking Only - 1.25" Threaded Cell - C2-27R
    $173.00
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    free shipping
  • Astronomik MC Clear Glass Clip Filter for Canon EOS 1000D, 100D, 450D-760D, 40D-70D, and 7D DSLR Cameras
    Astronomik Filters Astronomik MC Clear Glass Cover for Canon EOS 1000D, 100D, 450D-760D, 40D-70D, & 7D DSLR Cameras - C-EOS-1000D
    $65.95
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  • Astronomik MC Clear Glass Clip Filter for Canon EOS 350D, 20D, 20Da, and 30D DSLR Cameras
    Astronomik Filters Astronomik MC Clear Glass Clip Filter for Canon EOS 350D, 20D, 20Da, and 30D DSLR Cameras - C-EOS-350D
    $55.95
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  • Astronomik MC Clear Glass Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Clip Filter for Canon EOS 1100D-1300D and M3 DSLR Cameras - C-EOS-1100D
    $65.95
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  • Astronomik MC Clear Glass Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Clip Filter for Canon EOS 6D and 5Ds DSLR Cameras - C-EOS-6D
    $79.95
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  • Astrodon Astrodon Clear Filter with UV-Blocking Only - 31 mm Unthreaded Insert - C2-31R
    $183.00
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    free shipping
  • Astrodon ExoPlanet Light Curve Filter with Blue Blocking
    Astrodon Astrodon Exo-Planet Clear Filter with Blue Blocking - 31 mm Unmounted Insert - XOPBB-31R
    $195.00
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    free shipping
  • Astronomik 42 mm Round MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 42 mm Round - C-42
    $59.95
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    free shipping
  • Astronomik M52 Threaded MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - M52 Round Mounted - C-M52
    $69.95
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    free shipping
  • Astronomik MC Clear Glass Nikon XL Full Frame Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - Nikon XL Full Frame Clip - C-NIKXL
    $99.95
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    free shipping
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