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Orion Oxygen-III Nebula Filters for Eyepieces
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Orion Oxygen-III Nebula Filters for Eyepieces
Orion Oxygen-III Nebula Filters for Eyepieces
$105.99 - $155.99
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  • Our Oxygen-III Nebula filter provides extremely selective filtration to bring out elusive detail in diffuse and planetary nebulas
  • Orion's O-III eyepiece filter transmits close to 90% of the light corresponding to the two oxygen-III spectral lines at 496nm and 501nm while completely blocking virtually all other wavelengths
  • The O-III Nebula filter provides enhanced views of diffuse and planetary nebulas such as the Veil, Swan, Ring, Dumbbell, Helix, and Eagle nebulas, to name a few
  • Recommended for visual use, not intended for astrophotography
  • Available in two sizes, 2" and 1.25" for use with either 2" or 1.25" telescope eyepieces and accessories
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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, sport and hunting binoculars, and even night vision 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 Resource 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!