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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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  • Lumicon Lumicon 1.25" Ultra High Contrast (UHC) Filter - LF3025
    $100.00
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    free shipping
  • Baader Planetarium Moon & Skyglow Filter - 2
    Baader Planetarium Baader Planetarium 2" Moon and Skyglow Filter - FMS-2
    $152.00
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    No free shipping.
  • Orion Orion SkyGlow Broadband Light Pollution Reduction Filter 2" - 05659
    $69.99
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    No free shipping.
  • Celestron 2
    Celestron Celestron Ultra High Contrast (UHC) Light Pollution Reduction 2" Filter - 94124
    $109.95 $92.95
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    No free shipping.
  • Orion Orion Ultrablock Narrowband Light Pollution Reduction Filter 2" - 05657
    $99.99
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    No free shipping.
  • Thousand Oaks Optical Thousand Oaks LP-2 Narrowband Nebula Filter - 1.25" - LP-225
    $89.00
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    free shipping
  • Baader Planetarium Moon & Skyglow Filter - 1.25
    Baader Planetarium Baader Planetarium 1.25" Moon & Skyglow Filter - FMS-1
    $92.00
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    No free shipping.
  • Celestron Celestron 1.25" Ultra High Contrast (UHC) Light Pollution Reduction Filter - 94123
    $79.95 $69.95
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    No free shipping.
  • Lumicon Lumicon 2" Ultra High Contrast (UHC) Filter - LF3030
    $200.00
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    free shipping
  • Lumicon Lumicon Ultra High Contrast (UHC) Thread-on Filter for Schmidt-Cassegrain Rear Cell - LF3035
    $200.00
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    free shipping
  • Orion Orion Ultrablock Narrowband Light Pollution Reduction Filter 1.25" - 05654
    $79.99
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    No free shipping.
  • Orion Orion SkyGlow Broadband Light Pollution Reduction Filter 1.25" - 05660
    $49.99
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    No free shipping.
  • Astronomik 1.25
    Astronomik Filters Astronomik CLS Light Pollution Filter 1.25" - CLS-1
    $75.95
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    free shipping
  • Astronomik 2
    Astronomik Filters Astronomik CLS Light Pollution Filter 2" - CLS-2
    $159.95
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    free shipping
  • Astronomik 31 mm CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - 31 mm Round - CLS-31
    $95.95
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    free shipping
  • Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 1.25" - CLSCCD-1
    $99.95
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    free shipping
  • Astronomik 2
    Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 2" - CLSCCD-2
    $199.95
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    free shipping
  • Astronomik CLS CCD Canon EOS Clip Filter
    Astronomik Filters Astronomik CLS CCD Canon EOS Clip Filter - CLSCCD-EOS
    $159.95
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    free shipping
  • Astronomik CLS-CCD Canon EOS XL Full Frame Clip Filter
    Astronomik Filters Astronomik CLS CCD Canon EOS XL Full Frame Clip Filter - CLSCCD-EOSXL
    $199.95
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    free shipping
  • Astronomik CLS Canon EOS Clip Filter
    Astronomik Filters Astronomik CLS Canon EOS Clip Filter - CLS-EOS
    $129.95
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    free shipping
  • Astronomik CLS Canon EOS XL Clip Filter
    Astronomik Filters Astronomik CLS Canon EOS XL Full Frame Clip Filter - CLS-EOSXL
    $179.95
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    free shipping
  • Astronomik T-Thread CLS CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - T-Mount - CLSCCD-T
    $179.95
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    free shipping
  • Astronomik UHC Filter - 2
    Astronomik Filters Astronomik UHC Filter - 2" Round Mounted - UHC-2
    $219.95
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    free shipping
  • Astronomik 1.25
    Astronomik Filters Astronomik UHC Filter - 1.25" Round Mounted - UHC-1
    $109.95
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    free shipping
  • Optolong Optolong UHC Filter - 1.25" Mounted - UHC-125
    $55.00
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    free shipping
  • Optolong Optolong CLS Filter - 1.25" Mounted - CLS-125
    $55.00
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    free shipping
  • Optolong Optolong CLS Filter - 2" Mounted - CLS-200
    $85.00
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    free shipping
  • Optolong Optolong CLS-CCD Filter -1.25" Mounted - CLSCCD-125
    $96.00
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    free shipping
  • Optolong Optolong CLS-CCD Filter - 2" Mounted - CLSCCD-200
    $159.00
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    free shipping
  • Optolong Optolong Moon SkyGlow Filter - 1.25" Mounted - MSG-125
    $32.00
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    free shipping
  • Optolong Optolong Moon SkyGlow Filter - 2" Mounted - MSG-200
    $48.00
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    free shipping
  • Explore Scientific 2
    Explore Scientific Explore Scientific 2" UHC Nebula Filter - 310210
    $119.99
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    No free shipping.
  • Explore Scientific 1.25
    Explore Scientific Explore Scientific 1.25" UHC Nebula Filter - 310215
    $89.99
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    No free shipping.
  • Explore Scientific 1.25
    Explore Scientific Explore Scientific 1.25" CLS Filter - 310225
    $89.99
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    No free shipping.
  • Explore Scientific Explore Scientific 2" CLS Filter - 310220
    $99.99
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    No free shipping.
  • Astronomik 36 mm CLS-CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - 36 mm Round - CLSCCD-36
    $129.95
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    free shipping
  • Astronomik 36 mm CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - 36 mm Round - CLS-36
    $109.95
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    free shipping
  • Astronomik SCT Rear Cell CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - SC Rear Cell - CLS-SCT
    $159.95
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    free shipping
  • Astronomik T-Thread CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - T-Mount - CLS-T
    $139.95
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    free shipping
  • Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 31 mm Round - CLSCCD-31
    $109.95
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    free shipping
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