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| This is a good quality fully-multicoated low power eyepiece at a price that’s substantially lower than competitive Plössls. Its 50 degree apparent field of view is designed for expansive views of emission and reflection nebulas, for observing open clusters like the Pleiades, and for sweeping nebular remnants like the Veil. It will work well with any telescope type, at any focal ratio, under any seeing conditions. It provides a 7.11mm exit pupil with f/4.5 Dobsonians, and so is the longest focal length practical with such scopes. With a Dobsonian, its wide field of view makes it easier to locate objects than the normally supplied 25mm or 26mm eyepiece and allows 33% more time than a 25mm to observe before an object drifts out of the field of view and the scope has to be repositioned to observe it again. A soft rubber eyecup shields the eye from ambient light and folds down for more comfortable eyeglass use. A knurled rubber ring on the titanium-colored barrel provides a secure grip when changing eyepieces in cold weather. Plastic caps are supplied to keep both ends of the eyepiece dust free. The eyepiece is a snug fit in optional eyepiece case #EPA and works best in this case with the eyepiece's rubber eyecup folded down. As a second choice, optional eyepiece case #EPB will work with the rubber eyecup extended, but the 52mm diameter case is somewhat wider than needed for a snug fit with the 41mm diameter eyepiece.
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Terms of Sale | PRIVACY POLICY 7/1/2004 | Fine Print
Toll-Free Telephone Astronomics: 800-422-7876; Christophers, Ltd.: 800-356-6603
Alternate Telephone: 405-364-0858 24 Hour Fax Line: 405-447-3337
Telephone Hours: Monday-Friday 8 AM - 9 PM CST
Saturday Noon - 5 PM CST
Store Hours: Monday-Friday 9 AM - 5 PM CST
Saturday Noon - 5 PM CST
Astronomics / Christophers, Ltd.
680 S.W. 24th Ave.
Norman, OK, 73069
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