Skip to content

It's Here! Our Annual NEAF Demo Sale Is Going On Now - Save Up To 40%!
Delivery truck

Free Shipping

On Hundreds of Products

Filters

Items 1 - 25 of 879

Lumicon 1.25" Ultra High Contrast (UHC) Filter - LF3025

SKU: LUM-LF3025
  • Filter Type: UHC
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$100.00

Orion Variable Polarizing Moon 1.25" Filter - 05560

SKU: ORI-05560
  • Filter Type: Polarizing
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$29.99
Baader Planetarium Moon & Skyglow Filter - 2"

Baader Planetarium 2" Moon and Skyglow Filter - FMS-2

SKU: BAD-FMS-2
  • Filter Type: SkyGlow
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$152.00

Orion SkyGlow Broadband Light Pollution Reduction Filter 2" - 05659

SKU: ORI-05659
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$69.99

Thousand Oaks LP-1 Broadband Nebula Filter - 1.25" - LP-125

SKU: TOO-LP-125
  • Filter Type: Nebula/Broadband
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$89.00

Lumicon Gen 3 OIII Oxygen III Filter - 2" - LF3045

SKU: LUM-LF3045
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$200.00
Celestron 2" UHC Light Pollution Reduction Filter

Celestron Ultra High Contrast (UHC) Light Pollution Reduction 2" Filter - 94124

SKU: CEL-94124
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$120.95 $101.95
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

Orion 1.25" LRGB Filter Set - 05563

SKU: ORI-05563
  • Filter Type: RGB
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$149.99

Thousand Oaks LP-3 Oxygen III Nebula Filter - 2" - LP-348

SKU: TOO-LP-348
  • Filter Type: OIII
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$179.00

Orion 1.25" Jupiter Observation Eyepiece Filter - 05188

SKU: ORI-05188
  • Filter Type: Mars/Jupiter
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$19.99

Lumicon 1.25" Comet Filter - LF3070

SKU: LUM-LF3070
  • Filter Type: Comet
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$100.00
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

High Point 1.25" Neutral Density Filter 13% Transmission - ND96-0.9 - ND91

SKU: HPS-ND91
  • Filter Type: Neutral Density/Moon 13% Transmission
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$9.95

Baader LRGB CCD Filter Set - 2" Mounted - FLRGB-2

SKU: BAD-FLRGB-2
  • Filter Type: RGB
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$619.00

Orion SkyGlow Imaging 1.25" Filter - 05559

SKU: ORI-05559
  • Filter Type: SkyGlow
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99

Lumicon 2" Minus Violet Filter - LF3125

SKU: LUM-LF3125
  • Filter Type: Fringe-Killer/Minus Violet
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$80.00

Baader UV IR-Cut L Filter - 2" Mounted - FUVIR-2

SKU: BAD-FUVIR-2
  • Filter Type: UV/IR/Luminance
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$132.00

Lumicon 2" Deep Sky Filter - LF3015

SKU: LUM-LF3015
  • Filter Type: Nebula/Broadband
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$200.00

Meade 1.25" #1 Color Filter Set - 07530

SKU: MEA-07530
  • Filter Type: Color Planetary
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$49.99 $39.95

Orion Ultrablock Narrowband Light Pollution Reduction Filter 2" - 05657

SKU: ORI-05657
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99

Thousand Oaks LP-2 Narrowband Nebula Filter - 1.25" - LP-225

SKU: TOO-LP-225
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$89.00
iOptron Green Moon Filter

iOptron Green Moon Filter - 1.25" - TFE100

SKU: IOP-TFE100
  • Filter Type: Neutral Density/Moon
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$14.00
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