• Explore Scientific UHC Nebula Filter 2" — Boost Contrast on Galaxies and Nebulae
  • Explore Scientific UHC Nebula Filter 2" — view 2
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Explore Scientific

Explore Scientific UHC Nebula Filter 2" — Boost Contrast on Galaxies and Nebulae | Telescope Wolves

Explore Scientific UHC Nebula Filter 2" — Boost Contrast on Galaxies and Nebulae | Telescope Wolves

$139.99
$139.99
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The Explore Scientific UHC nebula filter (2") boosts contrast on nebulae in wide-field views by cutting through light pollution. A UHC (Ultra High Contrast) filter passes the key emission wavelengths nebulae glow at — hydrogen-beta and OIII — while blocking the streetlight and skyglow bands, so faint emission nebulae stand out clearly even from the suburbs. The larger 2-inch format suits wide-field eyepieces and imaging trains.

UHC filters are a popular, versatile nebula filter, delivering strong contrast on a wide range of emission nebulae without the single-line focus of an OIII filter.

Who it's for

For visual observers and imagers using 2-inch gear who want stronger contrast on emission nebulae. New to filters? See our guide to the best telescope filters for beginners.

Key features

  • Ultra High Contrast design passing H-beta and OIII emission bands.
  • Blocks light pollution for clearer, higher-contrast nebulae.
  • 2-inch format for wide-field eyepieces and imaging.
  • Versatile on many emission nebulae — broader than a single-line OIII filter.
  • Threaded cell for 2-inch eyepieces, filter wheels, and accessories.
Specifications
Brand Explore Scientific
Model 310210
Type UHC (Ultra High Contrast) nebula filter
Passbands H-beta and OIII emission bands
Size 2-inch threaded

Frequently asked questions

How is UHC different from OIII?
UHC passes a wider set of emission bands (H-beta and OIII) for versatility across many nebulae, while an OIII filter is narrower and maximizes contrast on oxygen-rich targets.

Is the 2-inch better than 1.25-inch?
The 2-inch fits larger wide-field eyepieces and 2" imaging trains; the 1.25-inch suits smaller eyepieces. Choose to match your gear.

Will it help galaxies?
UHC filters target emission nebulae; galaxies benefit more from a broadband light-pollution filter.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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