Celestron Ultima Series 18MM Ocular

by Celestron

Product Details

• Shipping Weight: 1 pounds
• ASIN: B0000665VF
• Item model number: 93353
• Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
• Discontinued by manufacturer: Yes
• Date first available at Amazon.com: April 30, 2002

Product Description

From the Manufacturer

Part of Celestron's top-of-the-line eyepiece series, this 18mm ocular utilizes a hybrid design of five elements. It features long eye relief and a wide field of view. Each air-to-glass surface is fully multicoated to enhance contrast levels. The Ultima series eyepieces are computer designed to keep visual aberrations to an absolute minimum. They virtually eliminate the following aberrations: spherical, color, field curvature, coma, astigmatism, distortion, and spherical distortion of the exit pupil.

The inside surfaces and edges of all lenses are blackened to keep out reflected light. Outside surfaces are flat black, with rubber grips for secure handling. Rubber eyecups are included both for comfortable use and to keep out extraneous light. Threaded barrels accept Celestron thread-in filters. Lens and barrel caps are included for safe storage.

Customer Reviews

Most Helpful Customer Reviews

5.0 out of 5 stars great eyepiece, July 29, 2002

By A Customer

This review is from: Celestron Ultima Series 18MM Ocular (Electronics)

This eyepiece is wonderful. This eyepiece will give just the right amount of magnification and field of view in most eyepieces. It is of high quality and is about the equivalent of a Meade series 4000 plossl. This eyepiece is a must buy for someone who wants a good medium powered eyepiece and will allow good viewing of star clusters, fine detail in galaxies and nebulas. This eyepiece is amazing and you will be glad you have it.