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Items 1 - 25 of 49

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 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
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$1,145.00
 

Astrodon 5 nm SII Narrowband Filter - 36 mm Round Unmounted - SII5-36R

SKU: ASD-SII5-36R
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$501.00
 
Baader Planetarium SII 8 nm Narrowband CCD Filter - 1.25" Mounted

Baader S-II 8 nm Narrowband CCD Filter - 1.25" Mounted - FSIIN-1

SKU: BAD-FSIIN-1
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$149.00
 
Baader Planetarium 2" SII 8 nm Narrowband CCD Filter

Baader S-II 8 nm Narrowband CCD Filter - 2" Mounted - FSIIN-2

SKU: BAD-FSIIN-2
  • Filter Type: SII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$234.00
 
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
 
Baader SII High Speed f/2 CCD Filter

Baader f/2 High Speed SII CCD Filter - 1.25" Mounted - FSIIHS-1

SKU: BAD-FSIIHS-1
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$219.00
 
Baader SII High Speed f/2 CCD Filter

Baader f/2 High Speed SII CCD Filter - 2" Mounted - FSIIHS-2

SKU: BAD-FSIIHS-2
  • Filter Type: SII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$352.00
 
Baader SII 8nm Narrowband Filter - 36 mm Round

Baader S-II 8 nm Narrowband CCD Filter - 36 mm Unmounted - FSIIN-RD36

SKU: BAD-FSIIN-RD36
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$188.00
 
Baader SII 8nm Narrowband Filter - 50.4 mm Round

Baader S-II 8 nm Narrowband CCD Filter - 50.4 mm Unmounted - FSIIN-RD50

SKU: BAD-FSIIN-RD50
  • Filter Type: SII
  • Filter Size: 50.4 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$299.00
 

Optolong SII CCD 12nm Filter - 1.25" Mounted - SIICCD12-125

SKU: OTL-SIICCD12-125
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.00 $103.20
 

Optolong SII CCD 6.5nm Filter - 1.25" Mounted - SIICCD65-125

SKU: OTL-SIICCD65-125
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$159.00
 

Optolong SII CCD 6.5nm Filter - 2" Mounted - SIICCD65-200

SKU: OTL-SIICCD65-200
  • Filter Type: SII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$250.00
 
Optolong SII Unmounted Filter

Optolong SII CCD 12nm Filter - 31mm Unmounted - SIICCD12-31U

SKU: OTL-SIICCD12-31U
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$153.00 $125.00
 
Optolong SII Unmounted Filter

Optolong SII CCD 12nm Filter - 36mm Unmounted - SIICCD12-36U

SKU: OTL-SIICCD12-36U
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$159.00 $127.00
 
Optolong SII Unmounted Filter

Optolong SII CCD 6.5nm Filter - 31mm Unmounted - SIICCD65-31U

SKU: OTL-SIICCD65-31U
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$193.00
 
Optolong SII Unmounted Filter

Optolong SII CCD 6.5nm Filter - 36mm Unmounted - SIICCD65-36U

SKU: OTL-SIICCD65-36U
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$199.00
 

ZWO SII 7nm Filter - 1.25" - SII125

SKU: ZWO-SII125
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.00
 

ZWO SII 7nm Filter - 31mm - SII31

SKU: ZWO-SII31
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$149.00
 

ZWO SII 7nm Filter - 36mm - SII36

SKU: ZWO-SII36
  • Filter Type: SII
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$169.00
 
Astronomik SII 12 nm CCD Filter - 36 mm Round

Astronomik SII 12 nm CCD Filter - 36 mm - SII-36

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

Astronomik SII 12 nm CCD Filter - 50 mm Round - SII-50R

SKU: ASF-SII-50R
  • Filter Type: SII
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$299.95
 
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 2" Round Mounted SII 6 nm CCD Filter

Astronomik SII 6 nm CCD Filter - 2" - SII6-2

SKU: ASF-SII6-2
  • Filter Type: SII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$469.95