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Astrophotography Filters

Items 1 - 25 of 47
Astronomik CLS Canon EOS Clip Filter

Astronomik CLS Canon EOS Clip Filter - CLS-EOS

SKU: ASF-CLS-EOS
  • Filter Type: CLS/LPR
  • Filter Size: EOS APS Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$129.95
Astronomik CLS Canon EOS XL Clip Filter

Astronomik CLS Canon EOS XL Full Frame Clip Filter - CLS-EOSXL

SKU: ASF-CLS-EOSXL
  • Filter Type: CLS/LPR
  • Filter Size: EOS Full Frame Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$179.95

Optolong UHC Filter - 1.25" Mounted - UHC-125

SKU: OTL-UHC-125
  • Filter Type: UHC
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$55.00

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
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$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
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$85.00

Optolong CLS-CCD Filter -1.25" Mounted - CLSCCD-125

SKU: OTL-CLSCCD-125
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$96.00

Optolong CLS-CCD Filter - 2" Mounted - CLSCCD-200

SKU: OTL-CLSCCD-200
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$159.00
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
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$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
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$95.95

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
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$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
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$48.00
Astronomik CLS CCD Filter - Canon EOS R XL Clip

Astronomik CLS CCD Canon EOS-R XL Clip Filter - CLSCCD-EOS-R-XL

SKU: ASF-CLSCCD-EOS-R-XL
  • Filter Type: CLS/LPR
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$239.95
Astronomik UHC Filter in Canon EOS-R XL Clip Format

Astronomik UHC Canon EOS R XL Clip Filter - UHC-EOS-R-XL

SKU: ASF-UHC-EOS-R-XL
  • Filter Type: UHC
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$239.95

Astronomik UHC-E Canon EOS R XL Clip Filter - UHCE-EOS-R-XL

SKU: ASF-UHCE-EOS-R-XL
  • Filter Type: UHC
  • Filter Size: EOS R/RP
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$159.95
Astronomik CLS CCD Pentax K1 Clip Filter

Astronomik CLS CCD Pentax K1 Clip Filter - CLSCCD-PENTAX - Used

SKU: UEQ-13758-ASF-CLSCCD-PENTAX
  • Filter Type: CLS/LPR
  • Filter Size: Pentax K1 Clip
  • Filter Shape: Pentax Clip
  • Filter Insert Style: Clip-In
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$239.95 $189.00
Astronomik T-Thread CLS CCD Light Pollution Filter

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

SKU: ASF-CLSCCD-T
  • Filter Type: CLS/LPR
  • Filter Size: M42 x 0.75 mm (T-Thread)
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$179.95

Astronomik CLS-CCD Light Pollution Filter - 1.25" - CLSCCD-1

SKU: ASF-CLSCCD-1
  • Filter Type: CLS/LPR
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$99.95
Astronomik 2" CLS-CCD Light Pollution Filter

Astronomik CLS-CCD Light Pollution Filter - 2" - CLSCCD-2

SKU: ASF-CLSCCD-2
  • Filter Type: CLS/LPR
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
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$199.95
Astronomik CLS CCD Canon EOS Clip Filter

Astronomik CLS CCD Canon EOS Clip Filter - CLSCCD-EOS

SKU: ASF-CLSCCD-EOS
  • Filter Type: CLS/LPR
  • Filter Size: EOS APS Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$159.95
Astronomik CLS-CCD Canon EOS XL Full Frame Clip Filter

Astronomik CLS CCD Canon EOS XL Full Frame Clip Filter - CLSCCD-EOSXL

SKU: ASF-CLSCCD-EOSXL
  • Filter Type: CLS/LPR
  • Filter Size: EOS Full Frame Clip
  • Filter Shape: EOS Clip
  • Filter Insert Style: Clip-In
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$199.95
Explore Scientific 2" UHC Nebula Filter with Case

Explore Scientific 2" UHC Nebula Filter - 310210

SKU: EXS-310210
  • Filter Type: UHC
  • Filter Size: 50.8 mm (2")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$129.99
Explore Scientific 1.25" UHC Nebula Filter with Case

Explore Scientific 1.25" UHC Nebula Filter - 310215

SKU: EXS-310215
  • Filter Type: UHC
  • Filter Size: 31.75 mm (1.25")
  • Filter Shape: Round
  • Filter Insert Style: Threaded
$99.99
Astronomik 36 mm CLS-CCD Light Pollution Filter

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

SKU: ASF-CLSCCD-36
  • Filter Type: CLS/LPR
  • Filter Size: 36 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$129.95
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
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$109.95

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.

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