Skip to content

Filters

Items 1 - 25 of 56
Optolong UBVRI Filter Set

Optolong UBVRI Filter Set - 1.25" Mounted - UBVRI-125

SKU: OTL-UBVRI-125
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$685.00 $548.00
 
Optolong UBVRI Filter Set

Optolong UBVRI Filter Set - 2" Mounted - UBVRI-200

SKU: OTL-UBVRI-200
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$830.00
 

Optolong UBVRI Filter Set - 31mm Unmounted - UBVRI-31U

SKU: OTL-UBVRI-31U
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$740.00 $481.00
 
Baader Planetarium Ultraviolet Photometric Filter - 1.25"

Baader 1.25" Photometric Filter - Ultraviolet - FUBVRI-U

SKU: BAD-FUBVRI-U
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$197.00
 
Baader Planetarium Visual Photometric Filter - 1.25"

Baader 1.25" Photometric Filter - Visual - FUBVRI-V

SKU: BAD-FUBVRI-V
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$197.00
 
Baader Planetarium Blue Photometric Filter - 1.25"

Baader 1.25" Photometric Filter - Blue - FUBVRI-B

SKU: BAD-FUBVRI-B
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$197.00
 
Baader Planetarium Red Photometric Filter - 1.25"

Baader 1.25" Photometric Filter - Red - FUBVRI-R

SKU: BAD-FUBVRI-R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$197.00
 
Baader Planetarium 1.25" Photometric Filter - Infrared

Baader 1.25" Photometric Filter - Infrared - FUBVRI-I

SKU: BAD-FUBVRI-I
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$197.00
 
Astrodon Sloan Generation 2 U Filter - 1.25" Round Mounted

Astrodon Photometric Sloan Gen2 U Filter - 320/385 nm - 1.25" Threaded Cell - U2-27R

SKU: ASD-U2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters with Transmission Chart

Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 1.25" Threaded Cell - G2-27R

SKU: ASD-G2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters with Transmission Chart

Astrodon Photometric Sloan Gen2 R Filter - 562/695 nm - 1.25" Threaded Cell - R2-27R

SKU: ASD-R2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters with Transmission Chart

Astrodon Photometric Sloan Gen2 I Filter - 695/844 nm - 1.25" Threaded Cell - I2-27R

SKU: ASD-I2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 1.25" Threaded Cell - Y2-27R

SKU: ASD-Y2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Johnson-Cousins UVBRI Photometric Filters

Astrodon Photometric Johnson-Cousins UV Filter - 1.25" Threaded Cell - UV-27R

SKU: ASD-UV-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$216.00
 
 Photometric Johnson-Cousins B Filter

Astrodon Photometric Johnson-Cousins B Filter - 1.25" Threaded Cell - B-27R

SKU: ASD-B-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$216.00
 
Astrodon Johnson-Cousins UVBRI Photometric Filters

Astrodon Photometric Johnson-Cousins V Filter - 1.25" Threaded Cell - V-27R

SKU: ASD-V-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$216.00
 
Photometric Johnson-Cousins Rc Filter

Astrodon Photometric Johnson-Cousins Rc Filter - 1.25" Threaded Cell - RC-27R

SKU: ASD-RC-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$216.00
 
Photometric Johnson-Cousins Ic Filter - 1.25" Threaded Cell

Astrodon Photometric Johnson-Cousins Ic Filter - 1.25" Threaded Cell - IC-27R

SKU: ASD-IC-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$216.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Z Filter - >826 nm - 1.25" Threaded Cell - Z2-27R

SKU: ASD-Z2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon Edge-Blackened Sloan Generation 2 Filters

Astrodon Photometrics Sloan Gen2 Z-S Filter - 826/920 nm - 1.25" Threaded Cell - Z-S2-27R

SKU: ASD-Z-S2-27R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
Free shipping Free shipping
$212.00
 
Astrodon 50 mm Round Unmounted Edge-Blackened Photometric Sloan Gen2 U Filter

Astrodon Photometric Sloan Gen2 U Filter - 320/385 nm - 49.7 mm Round Unmounted - U2-50R

SKU: ASD-U2-50R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$500.00
 
Astrodon Edge-Blackened Sloan Generation 2 G Filter - 49.7 mm Round Unmounted

Astrodon Photometric Sloan Gen2 G Filter - 401/550 nm - 49.7 mm Round Unmounted - G2-50R

SKU: ASD-G2-50R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$500.00
 
Astrodon 49.7 mm Round Unmounted Generation 2 Edge-Blackened Sloan R Filter

Astrodon Photometric Sloan Gen2 R Filter - 562/695 nm - 49.7 mm Round Unmounted - R2-50R

SKU: ASD-R2-50R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$500.00
 
Astrodon Photometric Sloan Generation 2 I Filter - 49.7 mm Round Unmounted

Astrodon Photometric Sloan Gen2 I Filter - 695/844 nm - 49.7 mm Round Unmounted - I2-50R

SKU: ASD-I2-50R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$500.00
 
Astrodon 49.7 mm Edge-Blackened Photometrics Sloan Gen2 Y Filter - Round, Unmounted

Astrodon Photometrics Sloan Gen2 Y Filter - 950/1058 nm - 49.7 mm Round Unmounted - Y2-50R

SKU: ASD-Y2-50R
  • Filter Type: Photometric (UBVIR, Johnson-Cousins)
  • Filter Size: 50 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$500.00
 

One of the most crucial accessories of astro-imaging is filters. Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Different filters will act differently, highlighting a rainbow of wavelengths to enhance a variety of features in the night sky.


Deep-space imaging in particular benefits from filters. Far away celestial objects, such as nebulae come to life in your photos with vivid colors. We recommend starting out with an h-alpha filter to filter out broadband light pollution while only allowing a very narrow bandwidth of light to pass through. These are a favorite filter among astrophotographers!


We offer deep sky filters and planetary filters from Lumicon, Baader Planetarium, Celestron, TeleVue, Meade, Orion, High Point & Thousand Oaks. Telescope filters will add to the performance of virtually any telescope and are a highly recommended telescope accessory. Feel free to contact one of our telescope experts for advice on selecting the filter assortment that is right for you.

High Point Scientific is rated 4.9/5 based on 1347 reviews