|
Email page link to a friend| Focal Length |
| The length of the effective optical path of a telescope or eyepiece (the distance from the main mirror or lens where the light is gathered to the point where the prime focus image is formed). Typically expressed in millimeters. |
How To Pick A Telescope . . . | Telescopes | Eyepieces | Microscopes | Binoculars | Accessories | Terms | FAQ |
Terms of Sale | Privacy Policy | Fine Print
Toll-Free Telephone: 800-422-7876
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
First Telescope
680 S.W. 24th Ave.
Norman, OK, 73069
© 2008 by Ad-Libs Advertising, Inc. All rights reserved
