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Filters

Items 1 - 25 of 648
Astrodon ExoPlanet Light Curve Filter with Blue Blocking

Astrodon Exo-Planet Clear Filter with Blue Blocking - 49.7 mm Round Unmounted - XOPBB-50R

SKU: ASD-XOPBB-50R
  • Filter Type: Clear
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$285.00
Astronomik CLS CCD Filter - Canon EOS R XL Clip

Astronomik CLS CCD Canon EOS-R XL Clip Filter - CLSCCD-EOS-R-XL

SKU: ASF-CLSCCD-EOS-R-XL
  • Filter Type: CLS/LPR
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$239.95
Astronomik UHC Filter in Canon EOS-R XL Clip Format

Astronomik UHC Canon EOS R XL Clip Filter - UHC-EOS-R-XL

SKU: ASF-UHC-EOS-R-XL
  • Filter Type: UHC
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$239.95

Astronomik UHC-E Canon EOS R XL Clip Filter - UHCE-EOS-R-XL

SKU: ASF-UHCE-EOS-R-XL
  • Filter Type: UHC
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$159.95
Astronomik L-3 Luminance UV-IR Blocking Canon EOS R XL Full Frame Clip Filter

Astronomik L-1 UV-IR Blocking Filter - Canon EOS R XL Clip - L1-EOS-R-XL

SKU: ASF-L1-EOS-R-XL
  • Filter Type: UV/IR/Luminance
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$159.95
Astronomik L-2 Luminance Blocking Canon EOS R XL Full Frame Clip Filter

Astronomik L-2 UV-IR Blocking Filter - Canon EOS R XL Clip - L2-EOS-R-XL

SKU: ASF-L2-EOS-R-XL
  • Filter Type: UV/IR/Luminance
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$139.95
Astronomik L-3 Luminance UV-IR Blocking EOS R XL Full Frame Clip Filter

Astronomik L-3 UV-IR Blocking Filter - Canon EOS R XL Clip - L3-EOS-R-XL

SKU: ASF-L3-EOS-R-XL
  • Filter Type: UV/IR/Luminance
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$159.95
Astronomik OIII 12 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik OIII 12 nm CCD Filter - Canon EOS R XL Full Frame Clip - OIIICCD-EOS-R-XL

SKU: ASF-OIIICCD-EOS-R-XL
  • Filter Type: OIII
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$329.95
Astronomik OIII 6 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik OIII 6 nm CCD Filter - Canon EOS R XL Full Frame Clip - OIIICCD6-EOS-R-XL

SKU: ASF-OIIICCD6-EOS-R-XL
  • Filter Type: OIII
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$519.95
Astronomik H-Alpha 12 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik H-Alpha 12 nm CCD Filter - Canon EOS R XL Full Frame Clip - HA12-EOS-R-XL

SKU: ASF-HA12-EOS-R-XL
  • Filter Type: H-Alpha
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$329.95
Astronomik H-Alpha 6 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik H-Alpha 6 nm CCD Filter - Canon EOS R XL Full Frame Clip - HA6-EOS-R-XL

SKU: ASF-HA6-EOS-R-XL
  • Filter Type: H-Alpha
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$519.95
Astronomik SII 12 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik SII 12 nm CCD Filter - Canon EOS R XL Full Frame Clip - SII-EOS-R-XL

SKU: ASF-SII-EOS-R-XL
  • Filter Type: SII
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$329.95
Astronomik SII 6 nm CCD Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik SII 6 nm CCD Filter - Canon EOS R XL Full Frame Clip - SII6-EOS-R-XL

SKU: ASF-SII6-EOS-R-XL
  • Filter Type: SII
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$519.95
Astronomik ProPlanet 642 IR-Pass EOS R XL Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik ProPlanet 642 BP IR-Pass Filter - Canon EOS R XL Full Frame Clip - P642-EOS-R-XL

SKU: ASF-P642-EOS-R-XL
  • Filter Type: Pro Planet
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$169.95
Astronomik ProPlanet 742 IR-Pass EOS R XL Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik ProPlanet 742 IR-Pass Filter - Canon EOS R XL Full Frame Clip - P742-EOS-R-XL

SKU: ASF-P742-EOS-R-XL
  • Filter Type: Pro Planet
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$125.95
Astronomik ProPlanet 807 IR-Pass EOS R XL Clip Filter for Canon EOS R/RP Full Frame Mirrorless Cameras

Astronomik ProPlanet 807 IR-Pass Filter - Canon EOS R XL Full Frame Clip - P807-EOS-R-XL

SKU: ASF-P807-EOS-R-XL
  • Filter Type: Pro Planet
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$125.95
Astronomik MC Clear Glass Protection Canon EOS R XL Full Frame Clip Filter

Astronomik MC Clear Glass Filter - Canon EOS R XL Full Frame Clip - C-EOS-R-XL

SKU: ASF-C-EOS-R-XL
  • Filter Type: Clear
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$99.95

Astrodon 3 nm H-Alpha Narrowband Filter - 49.7 mm Round Unmounted - HA3-50R

SKU: ASD-HA3-50R
  • Filter Type: H-Alpha
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$1,145.00

Astrodon 3 nm H-Alpha Narrowband Filter - 36 mm Round Unmounted - HA3-36R

SKU: ASD-HA3-36R
  • Filter Type: H-Alpha
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$748.00

Astrodon 3 nm NII Narrowband Filter - 36 mm Round - NII3-36MR

SKU: ASD-NII3-36MR
  • Filter Type: NII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$639.00
Astrodon OIII 3 nm Narrowband Filter - 36 mm Unthreaded Insert

Astrodon 3 nm OIII Narrowband Filter - 36 mm Round - OIII3-36R

SKU: ASD-OIII3-36R
  • Filter Type: OIII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$748.00

Astrodon 3 nm SII Narrowband Filter - 36 mm Round - SII3-36R

SKU: ASD-SII3-36R
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$748.00
Astrodon 36 mm Round H-Alpha 5 nm Narrowband Filter

Astrodon 5 nm H-Alpha Narrowband Filter - 36 mm Round - HA5-36R

SKU: ASD-HA5-36R
  • Filter Type: H-Alpha
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$501.00
Astrodon 3 nm OIII Narrowband Filter - 50 mm Round

Astrodon 3 nm OIII Narrowband Filter - 49.7 mm Round Unmounted - OIII3-50R

SKU: ASD-OIII3-50R
  • Filter Type: OIII
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$1,145.00
Astrodon 3 nm SII Narrowband 49.7 mm Round Filter

Astrodon 3 nm SII Narrowband Filter - 49.7 mm Round Unmounted - SII3-50R

SKU: ASD-SII3-50R
  • Filter Type: SII
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$1,145.00

One of the most crucial accessories of astro-imaging is filters. Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Different filters will act differently, highlighting a rainbow of wavelengths to enhance a variety of features in the night sky.


Deep-space imaging in particular benefits from filters. Far away celestial objects, such as nebulae come to life in your photos with vivid colors. We recommend starting out with an h-alpha filter to filter out broadband light pollution while only allowing a very narrow bandwidth of light to pass through. These are a favorite filter among astrophotographers!


We offer deep sky filters and planetary filters from Lumicon, Baader Planetarium, Celestron, TeleVue, Meade, Orion, High Point & Thousand Oaks. Telescope filters will add to the performance of virtually any telescope and are a highly recommended telescope accessory. Feel free to contact one of our telescope experts for advice on selecting the filter assortment that is right for you.

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