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Correction Filters

Items 1 - 25 of 68
Baader Planetarium Contrast Boost Filter - 1.25"

Baader Planetarium 1.25" Contrast Booster Filter - FCB-1

SKU: BAD-FCB-1
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$92.00
 
Baader Planetarium Contrast Boost Filter - 2"

Baader Planetarium 2" Contrast Booster Filter - FCB-2

SKU: BAD-FCB-2
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$147.00
 
Baader Planetarium Fringe Killer Filter - 1.25"

Baader Planetarium 1.25" Fringe Killer Filter - FFK-1

SKU: BAD-FFK-1
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$96.00
 
Baader Planetarium Fringe Killer Filter - 2"

Baader Planetarium 2" Fringe Killer Filter - FFK-2

SKU: BAD-FFK-2
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$138.00
 
Baader Planetarium Semi APO Filter - 1.25" Mounted

Baader Planetarium 1.25" Semi APO Filter - FSAPO-1

SKU: BAD-FSAPO-1
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$94.00
 
Baader Planetarium Semi APO Filter - 2" Mounted

Baader Planetarium 2" Semi-APO Filter - FSAPO-2

SKU: BAD-FSAPO-2
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$169.00
 
Astronomik 1.25" CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter 1.25" - CLS-1

SKU: ASF-CLS-1
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$75.95
 
Astronomik 2" CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter 2" - CLS-2

SKU: ASF-CLS-2
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$159.95
 
Astronomik 31 mm CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter - 31 mm Round - CLS-31

SKU: ASF-CLS-31
  • Filter Type: CLS/LPR
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$95.95
 
ZWO IR Cut Filter - 1.25"

ZWO 1.25" IR Cut-Off Filter - IRCUT1

SKU: ZWO-IRCUT1
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$22.00
 
Explore Scientific 1.25" CLS Filter with Case

Explore Scientific 1.25" CLS Filter - 310225

SKU: EXS-310225
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99
 

Explore Scientific 2" CLS Filter - 310220

SKU: EXS-310220
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$109.99
 

Stellarvue 1.25" Color Balanced Chromatic Aberration Filter - XCLR1

SKU: STV-XCLR1
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$79.00 $63.20
 

Optolong CLS Filter - 1.25" Mounted - CLS-125

SKU: OTL-CLS-125
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$55.00
 

Optolong CLS Filter - 2" Mounted - CLS-200

SKU: OTL-CLS-200
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$85.00
 

Optolong L-Pro Filter - 1.25" Mounted - LPRO-125

SKU: OTL-LPRO-125
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$149.00
 

Optolong L-Pro Filter - 2" Mounted - LPRO-200

SKU: OTL-LPRO-200
  • Filter Type: UV/IR/Luminance
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$199.00
 

Optolong Moon SkyGlow Filter - 1.25" Mounted - MSG-125

SKU: OTL-MSG-125
  • Filter Type: SkyGlow
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$32.00
 

Optolong Moon SkyGlow Filter - 2" Mounted - MSG-200

SKU: OTL-MSG-200
  • Filter Type: SkyGlow
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$48.00
 

High Point IR Blocking Filter - 1.25" - IRBF1

SKU: HPS-IRBF1
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$13.95
 

High Point IR Blocking Filter - 2" - IRBF2

SKU: HPS-IRBF2
  • Filter Type: UV/IR/Luminance
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$24.95
 
Astronomik 36 mm CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter - 36 mm Round - CLS-36

SKU: ASF-CLS-36
  • Filter Type: CLS/LPR
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$109.95
 
Astronomik SCT Rear Cell CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter - SC Rear Cell - CLS-SCT

SKU: ASF-CLS-SCT
  • Filter Type: CLS/LPR
  • Filter Size: SCT Rear Cell
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$159.95
 
Astronomik T-Thread CLS Light Pollution Filter

Astronomik CLS Light Pollution Filter - T-Mount - CLS-T

SKU: ASF-CLS-T
  • Filter Type: CLS/LPR
  • Filter Size: M42 x 0.75 mm (T-Thread)
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$139.95
 
Astronomik 1.25" IR Blocking Filter

Astronomik IR Blocking Filter - 1.25" - IR-1

SKU: ASF-IR-1
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$45.95