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Deep Sky Filters

Items 1 - 25 of 318
Celestron OIII Narrowband Filter - 1.25"

Celestron Oxygen III (OIII) Narrowband 1.25" Filter - 93623

SKU: CEL-93623
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$98.95

Celestron Oxygen III (OIII) Narrowband 2" Filter - 93624

SKU: CEL-93624
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$109.95

Celestron 1.25" Ultra High Contrast (UHC) Light Pollution Reduction Filter - 94123

SKU: CEL-94123
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$71.95
Celestron 2" UHC Light Pollution Reduction Filter

Celestron Ultra High Contrast (UHC) Light Pollution Reduction 2" Filter - 94124

SKU: CEL-94124
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$101.95
Baader Planetarium 1.25" Visual OIII Nebula Filter

Baader Visual OIII Nebula Filter - 1.25" - FOIII-1

SKU: BAD-FOIII-1
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$109.00
Baader Planetarium 2" Visual OIII Nebula Filter

Baader Visual OIII Nebula Filter - 2" - FOIII-2

SKU: BAD-FOIII-2
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$189.00
Baader 1.25" UHC-S Nebula Filter with L Booster

Baader UHC-S Nebula Filter - L Booster - 1.25" Mounted - FUHC-1

SKU: BAD-FUHC-1
  • Filter Type: UHC
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$89.00
Baader 2" UHC-S L Booster Filter

Baader UHC-S Nebula Filter - L Booster - 2" - FUHC-2

SKU: BAD-FUHC-2
  • Filter Type: UHC
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$147.00

Orion Oxygen III Nebula 1.25" Filter - 05581

SKU: ORI-05581
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99

Orion Oxygen III Nebula 2" Filter - 05582

SKU: ORI-05582
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$129.99

Orion Hydrogen-Beta Nebula 1.25" Filter - 05583

SKU: ORI-05583
  • Filter Type: H-Beta
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99

Orion Hydrogen-Beta Nebula 2" Filter - 05584

SKU: ORI-05584
  • Filter Type: H-Beta
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$129.99

Orion Ultrablock Narrowband Light Pollution Reduction Filter 1.25" - 05654

SKU: ORI-05654
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$79.99

Orion Ultrablock Narrowband Light Pollution Reduction Filter 2" - 05657

SKU: ORI-05657
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99

Orion SkyGlow Broadband Light Pollution Reduction Filter 2" - 05659

SKU: ORI-05659
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$69.99

Orion SkyGlow Broadband Light Pollution Reduction Filter 1.25" - 05660

SKU: ORI-05660
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$49.99

Thousand Oaks LP-1 Broadband Nebula Filter - 1.25" - LP-125

SKU: TOO-LP-125
  • Filter Type: Nebula/Broadband
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.00

Thousand Oaks LP-1 Broadband Nebula Filter - 2" - LP-148

SKU: TOO-LP-148
  • Filter Type: Nebula/Broadband
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$179.00

Thousand Oaks LP-2 Narrowband Nebula Filter - 1.25" - LP-225

SKU: TOO-LP-225
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.00

Thousand Oaks LP-2 Nebula Filter Narrowband - 2" - LP-248

SKU: TOO-LP-248
  • Filter Type: Nebula/Broadband
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$179.00

Thousand Oaks LP-3 Nebula Filter Oxygen III - 1.25" - LP-325

SKU: TOO-LP-325
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.00

Thousand Oaks LP-3 Oxygen III Nebula Filter - 2" - LP-348

SKU: TOO-LP-348
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$179.00

Thousand Oaks LP-4 H-Beta Nebula Filter - 1.25" - LP-425

SKU: TOO-LP-425
  • Filter Type: H-Beta
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$89.00

Lumicon Deep Sky 1.25" Filter - LF3010

SKU: LUM-LF3010
  • Filter Type: Nebula/Broadband
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$100.00

Lumicon 2" Deep Sky Filter - LF3015

SKU: LUM-LF3015
  • Filter Type: Nebula/Broadband
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$200.00