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Filters

Items 526 - 550 of 855
Zhumell 1.25" High Performance O-III Telescope Filter

Zhumell 1.25" High Performance O-III Telescope Filter - ZHUL062-1

SKU: ZHU-ZHUL062-1
  • Filter Type: OIII
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$49.99
 
Zhumell 1.25" High Performance UHC Telescope Filter

Zhumell 1.25" High Performance Ultra High Contrast UHC Filter - ZHUL063-1

SKU: ZHU-ZHUL063-1
  • Filter Type: UHC
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$49.99
 
Zhumell 2" O-III Filter

Zhumell 2" High Performance O-III Telescope Filter - ZHUL067-1

SKU: ZHU-ZHUL067-1
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$59.99
 
Zhumell Lunar & Planetary Color Filters - 1.25"

Zhumell 1.25" Lunar and Planetary Color Filter Set - ZHUL036-1

SKU: ZHU-ZHUL036-1
  • Filter Type: Color Planetary
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$34.99
 

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
Free shipping Free shipping
$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
Free shipping Free shipping
$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
Free shipping Free shipping
$222.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 31 mm Unthreaded Insert - Y2-31R

SKU: ASD-Y2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$222.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Z Filter - >826 nm - 31 mm Unthreaded Insert - Z2-31R

SKU: ASD-Z2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$222.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Z-S Filter - 826/920 nm - 31 mm Unthreaded Insert - Z-S2-31R

SKU: ASD-Z-S2-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$222.00
 
Photometric Johnson-Cousins UV Filter - 31 mm Unthreaded Insert

Astrodon Photometric Johnson-Cousins UV Filter - 31 mm Unthreaded Insert - UV-31R

SKU: ASD-UV-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$226.00
 
Astrodon 31 mm Unthreaded Photometric Johnson-Cousins B Filter

Astrodon Photometric Johnson-Cousins B Filter - 31 mm Unthreaded Insert - B-31R

SKU: ASD-B-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$226.00
 
Astrodon Johnson-Cousins UVBRI Photometric Filters

Astrodon Photometric Johnson-Cousins V Filter - 31 mm Unthreaded Insert - V-31R

SKU: ASD-V-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$226.00
 
Astrodon Johnson-Cousins UVBRI Photometric Filters

Astrodon Photometric Johnson-Cousins Rc Filter - 31 mm Unthreaded Insert - RC-31R

SKU: ASD-RC-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$226.00
 
Astrodon 31 mm Unthreaded Photometric Johnson-Cousins Ic Filter

Astrodon Photometric Johnson-Cousins Ic Filter - 31 mm Unthreaded Insert - IC-31R

SKU: ASD-IC-31R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$226.00
 
Astrodon ExoPlanet Light Curve Filter with Blue Blocking

Astrodon Exo-Planet Clear Filter with Blue Blocking - 31 mm Unmounted Insert - XOPBB-31R

SKU: ASD-XOPBB-31R
  • Filter Type: Clear
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$195.00
 
Celestron 1.25" ND Moon Filter

Celestron 1.25" Neutral Density Moon Filter - 94105

SKU: CEL-94105
  • Filter Type: Neutral Density/Moon
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$14.95
 
Celestron 1.25" Variable Polarizing Filter

Celestron 1.25" Variable Polarizing Filter - 94107

SKU: CEL-94107
  • Filter Type: Polarizing
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$29.95
 

Optolong Clear Sky Filter - 77mm Round Mounted - CS-77

SKU: OTL-CS-77
  • Filter Type: Clear
  • Filter Size: 77 mm
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$207.00
 

Optolong Clear Sky Filter - 82mm Round Mounted - CS-82

SKU: OTL-CS-82
  • Filter Type: Clear
  • Filter Size: 82 mm
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$259.00
 
Optolong 1.25" Filter Set with LRGB, H-Alpha, SII, and OIII Filters

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

SKU: OTL-LRGB-HASIIOIII-125
  • Filter Type: RGB & Narrowband Set
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$665.00