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Orion UltraBlock Narrowband Filters
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Orion UltraBlock Narrowband Filters
$99.99 - $124.99
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  • Orion UltraBlock eyepiece filters greatly increase contrast of emission and planetary nebulas when viewing from areas plagued with significant light pollution
  • Using an UltraBlock eyepiece filter allows you to see features and details that would normally be lost due to light pollution
  • UltraBlock filters block all forms of light pollution while passing critical hydrogen-beta and ionized oxygen wavelengths of light
  • Enhances the sky presence of a significant number of fainter deep-sky objects
  • Available in both 1.25" and 2" sizes, compatible with 1.25" and 2" Orion telescope eyepieces threaded for filters
More Info

If you observe from highly light-polluted sites, or if you want the maximum contrast enhancement for observing faint emission nebulas from areas of moderate light pollution, an Orion UltraBlock filter is just for you. With an UltraBlock filter attached to your telescope eyepiece, emission and planetary nebulas are visible from urban areas, where they are completely invisible without such a filter! In darker-sky locations with only moderate light pollution, many celestial objects will appear significantly enhanced over unfiltered and wideband-filtered views. Orion UltraBlock filters block all forms of light pollution. They reject wavelengths from incandescent and fluorescent lighting, which wideband filters cannot stop. Extremely high (99.9%) blocking of critical mercury and sodium emission bands and very high transmission of hydrogen-beta and ionized oxygen wavelengths result in the highest contrast gain of any competing light pollution filter. Available in 1.25" or 2" sizes for use with either 1.25" telescope eyepieces or 2" oculars, Orion UltraBlock filters make views of emission and planetary nebulas better. Get one today for your own telescope eyepieces!


Warranty
Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.
Specs
  • Filter use
    Deep sky
  • Bandwidth
    Narrowband
  • Warranty
    One year
1-800-447-1001
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Since 1975

Why Buy From Orion

  • 30 Day Money Back Guarantee
  • Safe & Secure Shopping
  • Same Day Shipping
  • Easy Returns
  • Sale Price Guarantee
  • Free Technical Support
More Information
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About Orion Telescopes & Binoculars

Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all.

Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you. And you'll enjoy discount prices by buying your telescope online, direct from Orion. Not sure how to choose a telescope? Orion's Telescope Buyer's Guide is a great place to start.

Orion binoculars are known for quality optics at a great price. We offer binoculars for every viewing interest, including astronomical binoculars, compact binoculars, waterproof binoculars, birding binoculars, and sport and hunting binoculars.

Orion's telescope and astrophotography accessories will enhance your telescope enjoyment without breaking the bank. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts. Capture breathtaking photos with our affordable astrophotography cameras. And when you're stargazing, Orion's telescope cases and covers, observing gear, red LED flashlights, astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful.

At Orion, we are committed to sharing our knowledge and passion for astronomy and astrophotography with the amateur astronomy community. Visit the Orion Community Center for in-depth information on telescopes, binoculars, and astrophotography. You can find astrophotography "how to" tips and share your best astronomy pictures here. Submit astronomy articles, events, and reviews, and even become a featured Orion customer!