|
|
Browse Manufacturers
Browse by Manufacturers / TeleVue / Barlow Lenses
|
x
 |
|
TeleVue - 2.5x Powermate image amplifier for 1.25" eyepieces
| Our Product #: 7625T | | TeleVue #: PMT-2513 |
| In Stock: | Usually ships within one business day. |
| While not technically a Barlow, this unique new 4-lens 2.5x image amplifier performs the same functions, but at a higher level of optical correction. Barlow lenses have a negative power that diverges field rays, lengthening the effective focal length of the telescope and increasing the magnification. If Barlows are made too short or with too much magnification, the diverging rays can cause severe . . .
[ More details . . . ]
|
| |
| |
|
|
| x
|
|
TeleVue - 3x Barlow for 1.25" eyepieces
| Our Product #: 7630 | | TeleVue #: BLW-3125 |
| In Stock: | Usually ships within one business day. |
| If you need a high quality, medium high power Barlow for 1.25” eyepieces, look no further than this TeleVue. It’s a 2-lens achromatic design with superb sharpness to match that of TeleVue eyepieces. It is fully multicoated, with blackened lens edges and internal antireflection threading for excellent contrast. Its barrel is threaded for standard 1.25" filters. There's an undercut safety groove in . . .
[ More details . . . ]
|
| |
| |
|
|
| x
|
|
TeleVue - 2x Powermate image amplifier for 2" eyepieces, with 1.25" eyepiece adapter
| Our Product #: 9122 | | TeleVue #: PMT-2200 |
| In Stock: | Usually ships within one business day. |
| If you need a very high quality 2x Barlow for 2” eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction. Barlow lenses have a negative power that diverges field rays, lengthening the effective focal length of the telescope and increasing the magnification . . .
[ More details . . . ]
|
| |
| |
|
|
|
|
Home | How to pick a telescope | Telescopes | Accessories | New Products | Used & Demo / Special Sales | Binoculars & Spotting Scopes |
Link Support
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
© 2009 by Ad-Libs Advertising, Inc. All rights reserved
|
