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Deep Sky Filters

7 Items

Optolong 1.25" Filter Set with H-Alpha, SII, and OIII Filters - HASIIOIII-125

SKU: OTL-HASIIOIII-125
  • Filter Type: Narrowband Set
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$465.00
 

Optolong 2" Filter Set with H-Alpha, SII, and OIII Filters - HASIIOIII-200

SKU: OTL-HASIIOIII-200
  • Filter Type: Narrowband Set
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$720.00
 

Optolong 31mm Unmounted Filter Set with H-Alpha, SII, and OIII Filters - HASIIOIII-31U

SKU: OTL-HASIIOIII-31U
  • Filter Type: Narrowband Set
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$540.00
 

Optolong 36mm Unmounted Filter Set with H-Alpha, SII, and OIII Filters - HASIIOIII-36U

SKU: OTL-HASIIOIII-36U
  • Filter Type: Narrowband Set
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$557.00
 
Atik Narrowband Filter Kit - 1.25" Mounted

Atik 1.25" Narrow Band Filter Set - ATK0176

SKU: ATK-ATK0176
  • Filter Type: Narrowband Set
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$451.00
 
Atik Narrowband Filter Kit - 36 mm Unmounted

Atik 36 mm Unmounted Narrow Band Filter Set - ATK0177

SKU: ATK-ATK0177
  • Filter Type: Narrowband Set
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$540.00
 
Atik Narrowband Filter Kit - 2" Mounted

Atik 2" Narrow Band Filter Set - ATK0175

SKU: ATK-ATK0175
  • Filter Type: Narrowband Set
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$706.00