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9 Items
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
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

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

ZWO SII 7nm Filter - 1.25" - SII7nm1.25

SKU: ZWO-SII7NM1.25
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$129.00
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
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
5 nm SII Narrowband Filter - 1.25" Threaded Cell

Astrodon 5 nm SII Narrowband Filter - 1.25" Threaded Cell - SII5-27R

SKU: ASD-SII5-27R
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$380.00
Astrodon Narrowband Filters

Astrodon 3 nm SII Narrowband Filter - 1.25" Threaded Cell - SII3-27R

SKU: ASD-SII3-27R
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$564.00
Baader Planetarium Ultra Narrowband 3.5 nm SII CCD Filter - 1.25" Round

Baader Planetarium Ultra Narrowband 4.5 nm SII CCD Filter - 1.25" - FSIINU-1

SKU: BAD-FSIINU-1
  • Filter Type: SII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$274.00