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Filters

19 Items
Astronomik SCT Rear Cell CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter - SC Rear Cell - CLS-SCT

SKU: ASF-CLS-SCT
  • Filter Type: CLS/LPR
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$159.95
Astronomik SCT Rear Cell CLS CCD Light Pollution Filter

Astronomik CLS CCD Light Pollution Filter - SC Rear Cell - CLSCCD-SCT

SKU: ASF-CLSCCD-SCT
  • Filter Type: CLS/LPR
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$199.95
Astronomik IR Blocking Filter - SC Rear Cell

Astronomik IR Blocking Filter - SC Rear Cell - IR-SCT

SKU: ASF-IR-SCT
  • Filter Type: UV/IR/Luminance
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.95
Astronomik OIII SCT Rear Cell Visual Filter

Astronomik OIII Visual Filter - SC Rear Cell - OIII-SCT

SKU: ASF-OIII-SCT
  • Filter Type: OIII
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$199.95
Astronomik SII 12 nm CCD Filter - SC Rear Cell

Astronomik SII 12 nm CCD Filter - SCT Rear Cell - SII-SCT

SKU: ASF-SII-SCT
  • Filter Type: SII
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95
Astronomik MC Clear Filter - SC Rear Cell

Astronomik MC Clear Glass Filter - SCT Rear Cell - C-SCT

SKU: ASF-C-SCT
  • Filter Type: Clear
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$69.95
Astronomik H-Alpha 12 nm CCD Filter - SCT Rear Cell

Astronomik H-Alpha 12 nm CCD Filter - SCT Rear Cell - HA12-SCT

SKU: ASF-HA12-SCT
  • Filter Type: H-Alpha
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95
Astronomik H-Alpha 6 nm SC Rear Cell CCD Filter

Astronomik H-Alpha 6 nm CCD Filter - SCT Rear Cell - HA6-SCT

SKU: ASF-HA6-SCT
  • Filter Type: H-Alpha
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$479.95
Astronomik L-1 UV-IR Blocking SC Rear Cell Filter

Astronomik L-1 UV-IR Blocking Filter - SCT Rear Cell - L1-SCT

SKU: ASF-L1-SCT
  • Filter Type: UV/IR/Luminance
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik UV-IR Blocking L-2 Luminance Filter - SC Rear Cell Mounted

Astronomik L-2 UV-IR Blocking Filter - SCT Rear Cell - L2-SCT

SKU: ASF-L2-SCT
  • Filter Type: UV/IR/Luminance
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$109.95
Astronomik L-3 UV-IR Blocker - SCT Rear Cell Mounted

Astronomik L-3 UV-IR Blocking Filter - SCT Rear Cell - L3-SCT

SKU: ASF-L3-SCT
  • Filter Type: UV/IR/Luminance
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik ProPlanet 642 IR-Pass SCT Rear Cell Mounted Filter

Astronomik ProPlanet 642 IR Pass Filter - SCT Rear Cell - P642-SCT

SKU: ASF-P642-SCT
  • Filter Type: Pro Planet
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$139.95
Astronomik ProPlanet 807 IR Filter - SCT Rear Cell

Astronomik ProPlanet 807 IR Pass Filter - SC Rear Cell - P807-SCT

SKU: ASF-P807-SCT
  • Filter Type: Pro Planet
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$89.95
Astronomik UHC-E SCT Rear Cell Filter

Astronomik UHC-E Filter - SC Rear Cell - UHCE-SCT

SKU: ASF-UHCE-SCT
  • Filter Type: UHC
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik H-Beta SC Rear Cell Visual Filter

Astronomik H-Beta Visual Filter - SC Rear Cell - HB-SCT

SKU: ASF-HB-SCT
  • Filter Type: H-Beta
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$219.95
Astronomik OIII 6 nm CCD SCT Rear Cell Filter

Astronomik OIII 6 nm CCD Filter - SC Rear Cell - OIIICCD6-SCT

SKU: ASF-OIIICCD6-SCT
  • Filter Type: OIII
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$479.95
Astronomik SII 6 nm CCD Filter - SC Rear Cell

Astronomik SII 6 nm CCD Filter - SC Rear Cell - SII6-SCT

SKU: ASF-SII6-SCT
  • Filter Type: SII
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$479.95
Astronomik ProPlanet 742 IR-Pass SCT Rear Cell Mounted Filter

Astronomik ProPlanet 742 IR Pass Filter - SCT Rear Cell - P742-SCT

SKU: ASF-P742-SCT
  • Filter Type: Pro Planet
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.95
Astronomik OIII 12 nm CCD Filter - SC Rear Cell

Astronomik OIII 12 nm CCD Filter - SC Rear Cell - OIIICCD-SCT

SKU: ASF-OIIICCD-SCT
  • Filter Type: OIII
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95

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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