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Orion Dielectric Mirror Telescope Diagonals
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Orion Dielectric Mirror Telescope Diagonals
Orion Dielectric Mirror Telescope Diagonals
$89.99 - $129.99
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  • Orion Dielectric Mirror Diagonals feature sophisticated, lab-tested dielectric coatings that boast an astounding 99-percent reflectivity
  • Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings
  • Machined and anodized aluminum diagonal housing features machine-threaded baffles for high contrast
  • Nosepiece barrel is threaded to accept Orion eyepiece filters
  • Available in both 1.25" and 2" sizes for use in either 1.25" or 2" refractor and Cassegrain telescope focusers
1-800-447-1001
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Why Buy From Orion

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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!