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Filters

Items 51 - 75 of 123

Astrodon Clear Filter with UV-Blocking Only - 31 mm Unthreaded Insert - C2-31R

SKU: ASD-C2-31R
  • Filter Type: Clear
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$183.00
Astrodon 31 mm Unthreaded Luminance Filter with UV/NIR Blocking

Astrodon Luminance UV/NIR Blocking Filter - 31 mm Unthreaded Insert - L2-31R

SKU: ASD-L2-31R
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$194.00

Astrodon 5 nm H-Alpha Narrowband Filter - 31 mm Unthreaded Insert - HA5-31R

SKU: ASD-HA5-31R
  • Filter Type: H-Alpha
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$390.00
Astrodon SII 5 nm Narrowband Filter - 31 mm Unthreaded

Astrodon 5 nm SII Narrowband Filter - 31 mm Unthreaded Insert - SII5-31R

SKU: ASD-SII5-31R
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$390.00
Astrodon 31 mm Unthreaded OIII Narrowband Filter - 5 nm

Astrodon 5 nm OIII Narrowband Filter - 31 mm Unthreaded Insert - OIII5-31R

SKU: ASD-OIII5-31R
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$390.00

Astrodon 5 nm Red Continuum Narrowband Filter - 31 mm Unthreaded Insert - REDCON5-31R

SKU: ASD-REDCON5-31R
  • Filter Type: Continuum (Not Solar)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$390.00
3 nm SII Narrowband Filter - 31 mm Unthreaded Insert

Astrodon 3 nm SII Narrowband Filter - 31 mm Unthreaded Insert - SII3-31R

SKU: ASD-SII3-31R
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$574.00
3 nm NII Narrowband Filter - 31 mm Unthreaded Insert

Astrodon 3 nm NII Narrowband Filter - 31 mm Unthreaded Insert - NII3-31R

SKU: ASD-NII3-31R
  • Filter Type: NII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$574.00

Astrodon E-Series Tru-Balance Red Filter - 1.25" Threaded Cell - R2-E27R

SKU: ASD-R2-E27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00
Astrodon 31 mm Unthreaded E-Series Tru-Balance Red "R" Filter

Astrodon E-Series Tru-Balance Red Filter - 31 mm Unthreaded Insert - R2-E31R

SKU: ASD-R2-E31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00

Astrodon E-Series Tru-Balance Green Filter - 1.25" Threaded Cell - G2-E27R

SKU: ASD-G2-E27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00
Astrodon 31 mm Unthreaded E-Series Tru-Balance Green "G" Filter

Astrodon E-Series Tru-Balance Green Filter - 31 mm Unthreaded Insert - G2-E31R

SKU: ASD-G2-E31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00

Astrodon E-Series Tru-Balance Blue Filter - 1.25" Threaded Cell - B2-E27R

SKU: ASD-B2-E27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00
Astrodon 31 mm Unthreaded E-Series Tru-Balance Blue "B" Filter

Astrodon E-Series Tru-Balance Blue Filter - 31 mm Unthreaded Insert - B2-E31R

SKU: ASD-B2-E31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00

Astrodon I-Series Tru-Balance Red Filter - 1.25" Threaded Cell - R2-I27R

SKU: ASD-R2-I27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00

Astrodon I-Series Tru-Balance Red Filter - 31 mm Unthreaded Insert - R2-I31R

SKU: ASD-R2-I31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00

Astrodon I-Series Tru-Balance Green Filter - 1.25" Threaded Cell - G2-I27R

SKU: ASD-G2-I27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00

Astrodon I-Series Tru-Balance Blue Filter - 1.25" Threaded Cell - B2-I27R

SKU: ASD-B2-I27R
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$184.00

Astrodon I-Series Tru-Balance Green Filter - 31 mm Unthreaded Insert - G2-I31R

SKU: ASD-G2-I31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00
Astrodon 31 mm Unthreaded Tru-Balance Blue Filter

Astrodon I-Series Tru-Balance Blue Filter - 31 mm Unthreaded Insert - B2-I31R

SKU: ASD-B2-I31R
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$194.00
Astrodon UVenus UV Imaging Filter

Astrodon UVenus UV Imaging Filter - 31 mm Unthreaded Insert - UVENUS-31R

SKU: ASD-UVENUS-31R
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$219.00
Astrodon 31 mm Unthreaded Photometric Sloan U Filter

Astrodon Photometric Sloan Gen2 U Filter - 320/385 nm - 31 mm Unthreaded Insert - U2-31R

SKU: ASD-U2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$222.00
Astrodon 31 mm Unthreaded Photometric Sloan G Filter

Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 31 mm Unthreaded Insert - G2-31R

SKU: ASD-G2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$222.00
Astrodon 31 mm Unthreaded Photometric Sloan R Filter

Astrodon Photometric Sloan Gen2 R Filter - 562/695 nm - 31 mm Unthreaded Insert - R2-31R

SKU: ASD-R2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$222.00

Astrodon Photometric Sloan Gen2 I Filter - 695/844 nm - 31 mm Unthreaded Insert - I2-31R

SKU: ASD-I2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$222.00