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Green Monday - Loads Of Telescope Deals!

Deep Sky Filters

Items 1 - 25 of 171
Astronomik L-2 Luminance UV-IR Blocking Filter - EOS XL Full Frame Clip

Astronomik Luminance L-2 Canon EOS XL Full-Frame Clip Filter - L2-EOSXL

SKU: ASF-L2-EOSXL
  • Filter Type: UV/IR/Luminance
  • Filter Size: EOS Full Frame Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$109.95
Astronomik 1.25" ProPlanet IR 742 Filter

Astronomik ProPlanet 742 IR Pass Filter - 1.25" - P742-1

SKU: ASF-P742-1
  • Filter Type: Pro Planet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$49.95
Astronomik ProPlanet 742 IR-Pass Filter - 2" Round Mounted

Astronomik ProPlanet IR - 742 Filter - 2" Round Mounted - P742-2

SKU: ASF-P742-2
  • Filter Type: Pro Planet
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$99.95
Astronomik 12 nm SII CCD Filter - 1.25" Round Mounted

Astronomik SII 12 nm CCD Filter - 1.25" - SII-1

SKU: ASF-SII-1
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik 2" Round Mounted SII CCD Filter - 12 nm

Astronomik SII 12 nm CCD Filter - 2" - SII-2

SKU: ASF-SII-2
  • Filter Type: SII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95
Astronomik 1.25" Round Mounted H-Alpha 12 nm CCD Filter

Astronomik H-Alpha 12 nm CCD Filter - 1.25" Round Mounted - HA12-1

SKU: ASF-HA12-1
  • Filter Type: H-Alpha
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik 2" Round Mounted H-Alpha 12 nm CCD Filter

Astronomik H-Alpha 12 nm CCD Filter - 2" Round Mounted - HA12-2

SKU: ASF-HA12-2
  • Filter Type: H-Alpha
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95
Astronomik H-Alpha 12 nm EOS Clip Filter

Astronomik H-Alpha 12 nm EOS Clip Filter - HA12-EOS

SKU: ASF-HA12-EOS
  • Filter Type: H-Alpha
  • Filter Size: EOS APS Clip
  • Filter Shape: Round
  • Filter Insert Style: Clip-In
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$189.95
Astronomik 1.25" Round Mounted OIII Visual Filter

Astronomik OIII Visual Filter - 1.25" Round Mounted - OIII-1

SKU: ASF-OIII-1
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$109.95
Astronomik OIII 12 nm CCD Filter - 2" Round Mounted

Astronomik OIII 12 nm CCD Filter - 2" Round Mounted - OIIICCD-2

SKU: ASF-OIIICCD-2
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$289.95
Astronomik 2" Round Mounted OIII Visual Filter

Astronomik OIII Visual Filter - 2" Round Mounted - OIII-2

SKU: ASF-OIII-2
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$219.95
Astronomik OIII 12 nm CCD Filter - 1.25" Round Mounted

Astronomik OIII 12 nm CCD Filter - 1.25" Round Mounted - OIIICCD-1

SKU: ASF-OIIICCD-1
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.95
Astronomik 12 nm OIII CCD Filter - EOS Clip

Astronomik OIII 12 nm CCD Filter - EOS Clip - OIIICCD-EOS

SKU: ASF-OIIICCD-EOS
  • Filter Type: OIII
  • Filter Size: EOS APS Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$189.95
Astronomik 31 mm Round UHC Filter

Astronomik UHC Filter - 31 mm Round - UHC-31

SKU: ASF-UHC-31
  • Filter Type: UHC
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$109.95
Astronomik 36 mm Round UHC Filter

Astronomik UHC Filter - 36 mm Round - UHC-36

SKU: ASF-UHC-36
  • Filter Type: UHC
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$129.95
Astronomik UHC Canon EOS Clip Filter

Astronomik UHC Canon EOS Clip Filter - UHC-EOS

SKU: ASF-UHC-EOS
  • Filter Type: UHC
  • Filter Size: EOS APS Clip
  • Filter Shape: Round
  • Filter Insert Style: Clip-In
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$159.95
Astronomik UHC Canon EOS XL Full Frame Clip Filter

Astronomik UHC Canon EOS XL Full Frame Clip Filter - UHC-EOSXL

SKU: ASF-UHC-EOSXL
  • Filter Type: UHC
  • Filter Size: EOS Full Frame Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$219.95
Astronomik OIII 12 nm CCD Filter - 31 mm Round

Astronomik OIII 12 nm CCD Filter - 31 mm Round - OIIICCD-31

SKU: ASF-OIIICCD-31
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$169.95
Astronomik 12 nm O-III CCD Filter - 36 mm Round

Astronomik OIII 12 nm CCD Filter - 36 mm Round - OIIICCD-36

SKU: ASF-OIIICCD-36
  • Filter Type: OIII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$189.95
Astronomik OIII 12 nm CCD Filter - 50 mm Round

Astronomik OIII 12 nm CCD Filter - 50 mm Round - OIIICCD-50R

SKU: ASF-OIIICCD-50R
  • Filter Type: OIII
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$299.95
Astronomik 31 mm Round SII 12 nm CCD Filter

Astronomik SII 12 nm CCD Filter - 31 mm - SII-31

SKU: ASF-SII-31
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$169.95
Astronomik 1.25" Round Mounted SII 6 nm CCD Filter

Astronomik SII 6 nm CCD Filter - 1.25" - SII6-1

SKU: ASF-SII6-1
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$199.95
Astronomik 6 nm OIIICCD Filter - 1.25" Round Mounted

Astronomik OIII 6 nm CCD Filter - 1.25" Round Mounted - OIIICCD6-1

SKU: ASF-OIIICCD6-1
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$199.95
Astronomik ProPlanet 642 BP IR-Pass EOS Clip Filter

Astronomik ProPlanet 642 BP IR-Pass Filter - EOS Clip - P642-EOS

SKU: ASF-P642-EOS
  • Filter Type: Pro Planet
  • Filter Size: EOS APS Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
Free shipping Free shipping
$109.95
Astronomik 2" Round Mounted OIII 6 nm CCD Filter

Astronomik OIII 6 nm CCD Filter - 2" Round Mounted - OIIICCD6-2

SKU: ASF-OIIICCD6-2
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$469.95