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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 Filters

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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 Canon EOS Clip Filter
    Astronomik Filters Astronomik CLS Canon EOS Clip Filter - CLS-EOS
    $129.95
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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 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 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 UHC Canon EOS Clip Filter
    Astronomik Filters Astronomik UHC Canon EOS Clip Filter - UHC-EOS
    $159.95
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  • Astronomik SII 6 nm CCD EOS Clip Filter
    Astronomik Filters Astronomik SII 6 nm CCD EOS Clip Filter - SII6-EOS
    $289.95
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  • Astronomik SII 12 nm CCD Filter for Canon EOS Cameras
    Astronomik Filters Astronomik SII 12 nm CCD EOS Clip Filter - SII-EOS
    $189.95
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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 OIII 6 nm CCD Filter - Canon EOS APS-C Clip
    Astronomik Filters Astronomik OIII 6 nm CCD EOS Clip Filter - OIIICCD6-EOS
    $289.95
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  • Astronomik MC Clear Glass EOS Clip Filter
    Astronomik Filters Astronomik MC Clear Glass Filter - EOS Clip - C-EOS
    $69.95
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  • Astronomik L-1 UV-IR Blocker - EOS APS Clip Filter
    Astronomik Filters Astronomik L-1 UV-IR Blocking EOS Clip Filter - L1-EOS
    $99.95
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  • Astronomik L-2 UV-IR Blocking Filter - EOS APS Clip
    Astronomik Filters Astronomik L-2 UV-IR Blocking EOS Clip Filter - L2-EOS
    $95.95
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  • Astronomik L-3 Luminance UV-IR Blocking Filter - EOS APS Clip
    Astronomik Filters Astronomik L-3 UV-IR Blocking EOS Clip Filter - L3-EOS
    $99.95
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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 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 UHC-E EOS APS-C Clip
    Astronomik Filters Astronomik UHC-E Filter - EOS APS-C Clip - UHCE-EOS
    $109.95
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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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  • 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 Clip Filter 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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