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| This Meade Ultra Wide is an exceptional medium focal length eyepiece with a very wide 82° field of view that makes observing feel like you’re taking a space walk rather than looking through an eyepiece, particularly with fast focal ratio/short focal length scopes such as fast apo refractors or Dobsonian reflectors. A 10” f/4.5 Dobsonian reflector will have a full 1.29° field at 64x with this eyepiece, able to encompass all of the Pleiades in one field. A 4” f/8 refractor will have a 1.81° field at 45x, a sweep of the sky over three and a half times as wide as the full Moon. With a usable eye relief of 13mm, the 18mm Meade will vignette the field of view for eyeglass wearers. However, since the 82° field is so wide that you can’t see the full field without having to move your head from side to side to take it all in, even without glasses, vignetting in the conventional sense is not a problem. The image is well corrected and sharp from edge to edge, yielding a glorious “picture window on space” observing experience with a wide variety of telescopes.
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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 8 AM - 6 PM CST
Tuesday-Friday 8 AM - 8 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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