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Items 1 - 25 of 75

Optolong OIII CCD 12nm Filter - 31mm Unmounted - OIIICCD12NM-31U

SKU: OTL-OIIICCD12NM-31U
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$130.00 $99.95

Optolong OIII CCD 6.5nm Filter - 31mm Unmounted - OIIICCD65-31U

SKU: OTL-OIIICCD65-31U
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$189.00
Optolong SII Unmounted Filter

Optolong SII CCD 12nm Filter - 31mm Unmounted - SIICCD12-31U

SKU: OTL-SIICCD12-31U
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$153.00 $125.00
Optolong SII Unmounted Filter

Optolong SII CCD 6.5nm Filter - 31mm Unmounted - SIICCD65-31U

SKU: OTL-SIICCD65-31U
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$193.00
Optolong H-Alpha Unmounted Filter

Optolong H-Alpha 7nm CCD Filter - 31mm Unmounted - HAL7-31U

SKU: OTL-HAL7-31U
  • Filter Type: H-Alpha
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$190.00

Optolong LRGB CCD Filter Set - 31mm Unmounted - LRGB-31U

SKU: OTL-LRGB-31U
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$291.00

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
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$740.00 $481.00
Optolong UVIR Cut Unmounted Filter

Optolong UV-IR Cut Filter - 31mm Unmounted - UVIR-31U

SKU: OTL-UVIR-31U
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$55.00 $44.00
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

ZWO LRGB Filter Set - 31mm Unmounted - LRGB-31

SKU: ZWO-LRGB-31
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$169.00 $152.10

ZWO H-Alpha 7nm CCD Filter - 31mm - HA31

SKU: ZWO-HA31
  • Filter Type: H-Alpha
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$149.00 $134.10

ZWO SII 7nm Filter - 31mm - SII31

SKU: ZWO-SII31
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$149.00 $134.10

ZWO OIII 7nm Filter - 31mm - OIII31

SKU: ZWO-OIII31
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$149.00 $134.10
Astronomik 31 mm Round Mounted MC Clear Glass Filter

Astronomik MC Clear Glass Filter - 31 mm Round - C-31

SKU: ASF-C-31
  • Filter Type: Clear
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$49.95

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

SKU: ASF-CLSCCD-31
  • Filter Type: CLS/LPR
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$109.95
Astronomik 31 mm Round H-Alpha 12 nm CCD Filter

Astronomik H-Alpha 12 nm CCD Filter - 31 mm Round - HA12-31

SKU: ASF-HA12-31
  • Filter Type: H-Alpha
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$169.95
Astronomik 6 nm H-Alpha Filter in 31 mm Format

Astronomik H-Alpha 6 nm CCD Filter - 31 mm Round - HA6-31

SKU: ASF-HA6-31
  • Filter Type: H-Alpha
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$249.95
Astronomik 31 mm Round LRGB Filter Set

Astronomik LRGB Filter Set - 31 mm Round - LRGB-31

SKU: ASF-LRGB-31
  • Filter Type: RGB
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$319.95
Astronomik 31 mm Round UHC Filter

Astronomik UHC Filter - 31 mm Round - UHC-31

SKU: ASF-UHC-31
  • Filter Type: UHC
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$109.95
Astronomik OIII 12 nm CCD Filter - 31 mm Round

Astronomik OIII 12 nm CCD Filter - 31 mm Round - OIIICCD-31

SKU: ASF-OIIICCD-31
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
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$169.95
Astronomik 31 mm Round SII 12 nm CCD Filter

Astronomik SII 12 nm CCD Filter - 31 mm - SII-31

SKU: ASF-SII-31
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$169.95
Astronomik OIII 6 nm CCD Filter - 31 mm Round

Astronomik OIII 6 nm CCD Filter - 31 mm Round - OIIICCD6-31

SKU: ASF-OIIICCD6-31
  • Filter Type: OIII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$249.95

ZWO 31mm Narrowband Filter Set - OIII, Ha, SII - NBSET-31

SKU: ZWO-NBSET-31
  • Filter Type: Narrowband Set
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$425.00 $382.50
Astronomik 31 mm Round SII 6 nm CCD Filter

Astronomik SII 6 nm CCD Filter - 31 mm - SII6-31

SKU: ASF-SII6-31
  • Filter Type: SII
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
Free shipping Free shipping
$249.95
Baader Planetarium 31 mm Round Unmounted UV-IR Cut Luminance Filter

Baader 31 mm UV-IR Cut L-Filter - FUVIR-RD31

SKU: BAD-FUVIR-RD31
  • Filter Type: UV/IR/Luminance
  • Filter Size: 31 mm
  • Filter Shape: Round
  • Filter Insert Style: Drop-In
$60.00

High Point Scientific carries the most popular telescope brands among astronomy enthusiasts, including Celestron, Baader Planetarium, Orion, and many more. We also design our own astronomy products under the High Point brand, to give you the best selection of products at the price you’re looking for.


We work directly with manufacturers to give you a wide selection of products from many other brands like Meade, TeleVue, Explore Scientific, Coronado, and iOptron. While we have dedicated many hours researching what telescope brands you - our customers - are looking for, we encourage you to explore up and coming brands on our website such as William Optics, Pentax, SkyWatcher, and Stellarvue.


High Point Scientific offers many of the latest brands to choose from for telescope accessories. Just a few of these brands include AstroZap, ADM Accessories, Losmandy, Takahashi, and JMI. It’s important to make sure you have the correct accessories for your aspirations and budget and our experts are here to make sure you find them.


Astro-imaging is a growing industry, not just for photographers, but for astronomy hobbyists as well. With so many quality, affordable products, it’s easy to see why! Brands like QSI, ZWO, and QHY have designed some of the best astrophotography cameras in the industry, and we have them right here at High Point!

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