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When doing photography of any kind, the final image is dependent upon all of the components in the optical chain, from the telescope and/or camera to the filters. When you choose Astronomik for your CCD filter needs, you are taking a big step towards getting the sharp, high-contrast results you can be proud of.


Astronomik Filters are designed and manufactured in Germany. All components, from the precision glass substrate to the anodized aluminum for EOS clip filters and threaded mountings, are made in Europe of the highest quality materials. Quality Control is taken very seriously, in fact, each filter has its own serial number and is inspected at the factory before shipment.


Unlike many other filter manufacturers, Astronomik filters are made of a piece of transparent polished glass with thin dichroic filter layers applied to both sides of the glass substrate. The transmission curves are optimized for bright, high contrast images without losing the subtle gradations in celestial objects. An integrated IR Blocking layer prevents fogging due to Infrared radiation up to 1200nm. This process results in a maximum transmission of 99.6% and almost zero reduction in the performance of your optical chain.


Astronomik filters are truly parfocal, which means no extra focusing is required when changing from one filter to another. They also have an amazing shelf life and are highly scratch- and moisture-resistant. Astronomik is so sure of the resistant coating technology used on their filters that they offer a Ten Year Guarantee!


We believe Astronomik Filters are superb. Whether you are a beginner, enthusiast, or professional, Astronomik filters are the right choice. If you have any questions or need help choosing the right filters for your set-up, feel free to contact our telescope experts via chat, phone, or email.

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  • Astronomik 1.25
    Astronomik Filters Astronomik CLS Light Pollution Filter 1.25" - CLS-1
    $75.95
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  • Astronomik 2
    Astronomik Filters Astronomik CLS Light Pollution Filter 2" - CLS-2
    $159.95
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  • Astronomik 31 mm CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - 31 mm Round Mounted - CLS-31
    $89.95
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  • Astronomik CLS CCD Light Pollution Filter - 1.25
    Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 1.25" - CLSCCD-1
    $99.95
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  • Astronomik 2
    Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 2" - CLSCCD-2
    $199.95
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  • Astronomik CLS CCD Canon EOS Clip Filter
    Astronomik Filters Astronomik CLS CCD Canon EOS Clip Filter - CLSCCD-EOS
    $159.95
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  • 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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  • Astronomik CLS Canon EOS Clip Filter
    Astronomik Filters Astronomik CLS Canon EOS Clip Filter - CLS-EOS
    $129.95
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  • Astronomik CLS Canon EOS XL Clip Filter
    Astronomik Filters Astronomik CLS Canon EOS XL Full Frame Clip Filter - CLS-EOSXL
    $159.95
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  • Astronomik Filters Astronomik Luminance L-2 Canon EOS XL Full-Frame Clip Filter - L2-EOSXL
    $109.95
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  • 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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  • Astronomik UHC Filter - 2
    Astronomik Filters Astronomik UHC Filter - 2" Round Mounted - UHC-2
    $219.95
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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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  • ASF-P742-2 Filter
    Astronomik Filters Astronomik ProPlanet IR - 742 Filter - 2" Round Mounted - P742-2
    $99.95
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  • Astronomik 12 nm SII CCD Filter - 1.25
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 1.25" - SII-1
    $129.95
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  • Astronomik 2
    Astronomik Filters Astronomik SII 12 nm CCD Filter - 2" - SII-2
    $289.95
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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 LRGB Filter Set - 1.25
    Astronomik Filters Astronomik LRGB Filter Set - 1.25" Round Mounted - LRGB-1
    $269.95
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  • Astronomik 2
    Astronomik Filters Astronomik LRGB Filter Set - 2" Round Mounted - LRGB-2
    $529.95
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  • Astronomik 1.25
    Astronomik Filters Astronomik OIII Visual Filter - 1.25" Round Mounted - OIII-1
    $109.95
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  • Astronomik OIII 12 nm CCD Filter - 2
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 2" Round Mounted - OIIICCD-2
    $289.95
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  • Astronomik 2
    Astronomik Filters Astronomik OIII Visual Filter - 2" Round Mounted - OIII-2
    $219.95
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  • Astronomik OIII 12 nm CCD Filter - 1.25
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - 1.25" Round Mounted - OIIICCD-1
    $129.95
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  • Astronomik 12 nm OIII CCD Filter - EOS Clip
    Astronomik Filters Astronomik OIII 12 nm CCD Filter - EOS Clip - OIIICCD-EOS
    $189.95
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  • Astronomik Type 3 OWB EOS Clip Filter
    Astronomik Filters Astronomik OWB Filter - Type 3 - EOS Clip - OWBCCD-EOS
    $129.95
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  • Astronomik 1.25
    Astronomik Filters Astronomik UHC Filter - 1.25" Round Mounted - UHC-1
    $109.95
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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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  • 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 1.25
    Astronomik Filters Astronomik MC Clear Glass Filter - 1.25" Round Mounted - C-1
    $39.95
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  • Astronomik 2
    Astronomik Filters Astronomik MC Clear Glass Filter - 2" Round Mounted - C-2
    $69.95
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  • Astronomik 31 mm Round Mounted MC Clear Glass Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - 31 mm Round Mounted - C-31
    $49.95
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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 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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  • Astronomik T-Thread CLS Light Pollution Filter
    Astronomik Filters Astronomik CLS Light Pollution Filter - T-Mount - CLS-T
    $139.95
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  • Astronomik 31 mm Round Mounted CLS-CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS-CCD Light Pollution Filter - 31 mm Round Mounted - CLSCCD-31
    $109.95
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  • Astronomik SCT Rear Cell CLS CCD Light Pollution Filter
    Astronomik Filters Astronomik CLS CCD Light Pollution Filter - SC Rear Cell - CLSCCD-SCT
    $199.95
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  • Astronomik 31 mm Round Mounted H-Alpha 12 nm CCD Filter
    Astronomik Filters Astronomik H-Alpha 12 nm CCD Filter - 31 mm Round Mounted - HA12-31
    $169.95
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