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Filters

14 Items
Astronomik 42 mm Round OIII 12 nm CCD Filter

Astronomik OIII 12 nm CCD Filter - 42 mm Round - OIIICCD-42

SKU: ASF-OIIICCD-42
  • Filter Type: OIII
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$229.95
 
Astronomik 42 mm Round OIII 6 nm CCD Filter

Astronomik OIII 6 nm CCD Filter - 42 mm Round - OIIICCD6-42

SKU: ASF-OIIICCD6-42
  • Filter Type: OIII
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$359.95
 
Astronomik 42 mm Round H-Alpha 12 nm CCD Filter

Astronomik H-Alpha 12 nm CCD Filter - 42 mm Round - HA12-42

SKU: ASF-HA12-42
  • Filter Type: H-Alpha
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$229.95
 
Astronomik 42 mm Round H-Alpha 6 nm CCD Filter

Astronomik H-Alpha 6 nm CCD Filter - 42 mm Round - HA6-42

SKU: ASF-HA6-42
  • Filter Type: H-Alpha
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$359.95
 
Astronomik 42 mm Round 12 nm SII CCD Filter

Astronomik SII 12 nm CCD Filter - 42 mm Round - SII-42

SKU: ASF-SII-42
  • Filter Type: SII
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$229.95
 
Astronomik 42 mm Round SII 6 nm CCD Filter

Astronomik SII 6 nm CCD Filter - 42 mm Round - SII6-42

SKU: ASF-SII6-42
  • Filter Type: SII
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$359.95
 
Astronomik 42 mm Round ProPlanet 642 IR-Pass Filter

Astronomik ProPlanet 642 IR Pass Filter - 42 mm Round - P642-42

SKU: ASF-P642-42
  • Filter Type: Pro Planet
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$109.95
 
Astronomik 42 mm Round ProPlanet 742 IR-Pass Filter

Astronomik ProPlanet 742 IR-Pass Filter - 42 mm Round - P742-42

SKU: ASF-P742-42
  • Filter Type: Pro Planet
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$75.95
 
Astronomik 42 mm Round ProPlanet 807 IR-Pass Filter

Astronomik ProPlanet 807 IR Pass Filter - 42 mm Round - P807-42

SKU: ASF-P807-42
  • Filter Type: Pro Planet
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$75.95
 
Astronomik 42 mm Round MC Clear Glass Filter

Astronomik MC Clear Glass Filter - 42 mm Round - C-42

SKU: ASF-C-42
  • Filter Type: Clear
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$59.95
 
Astronomik 42 mm Round CLS CCD Light Pollution Reduction Filter

Astronomik CLS CCD Light Pollution Filter - 42 mm Round - CLSCCD-42

SKU: ASF-CLSCCD-42
  • Filter Type: CLS/LPR
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$159.95
 
Astronomik 42 mm Round L-1 UV-IR Blocking Filter

Astronomik L-1 UV-IR Blocking Filter - 42 mm Round - L1-42

SKU: ASF-L1-42
  • Filter Type: UV/IR/Luminance
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$99.95
 
Astronomik L-2 UV-IR Blocking Filter - 42 mm Round

Astronomik L-2 UV-IR Blocking Filter - 42 mm Round - L2-42

SKU: ASF-L2-42
  • Filter Type: UV/IR/Luminance
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$85.95
 
Astronomik 42 mm Round L-3 UV-IR Blocking Filter

Astronomik L-3 UV-IR Blocking Filter - 42 mm Round - L3-42

SKU: ASF-L3-42
  • Filter Type: UV/IR/Luminance
  • Filter Size: 42 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$99.95
 

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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