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You are in: Optical Accessories > Eyepieces > Fixed Focal Length Eyepieces > Orion Expanse 9mm
Orion  Expanse 9mm
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Orion Expanse 9mm
1.25" 66° 9mm Expanse wide field eyepiece
Availability: Currently Available
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Average Rating: star_newstar_newstar_newstar_newstar_new [4.33] (Ratings Key)
Rated by 3 users
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star_newstar_newstar_newstar_newstar_new The 9mm Orion Expanse Telescope Eyepiece
by CosmicLugNut 14-Sep-13
If you can afford only one top end eyepiece, make it the one with a focal length about twice your scopes focal ratio. (The Backyard Astronomers Guide). The 9mm Orion Expanse Telescope Eyepiece is the closest I could come to the “optimal eye piece” fo
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star_newstar_newstar_newstar_newstar_new Orion Expanse 9mm
by cosmic109 13-Feb-08
Yes, I must admit that I do like the entire collection of Orion Expanse eyepieces, and the 9mm is no exception. Built with power, a wide field of view , and long eye-relief in mind, the 9mm Expanse doesn't disappoint. In a Celestron C80ED, the view
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1 of 1 people [100%] found this review useful
star_newstar_newstar_newstar_newstar_new Orion Expanse Wide-Field 9mm
by viperbob 03-Jul-07
I needed a high power eyepiece with a wide view if possible, and I've tried these and have not been disappointed. These sell for $50.00 each from Orion and for the money they are quite nice, if not superior. Orion is quite well known for their exce
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