Accessories / Photographic / Camera Adapters – 35mm, digital, and large format / Astro-Tech Astro-Tech Email page link to a friend Astro-Tech Sort By:   Price | Manufacturer | Product # x   Astronomy Technologies - Astro-Tech 2" prime focus adapter, needs T-ring  Our Product #:  ATPFA Back-Ordered:  Temporarily out of stock; will charge and ship when available. This Astro-Tech 2” prime focus adapter allows unvignetted prime focus photography with most reflectors and refractors equipped with a 2” focuser . . . [ More details . . . ]  $29.95 Add to comparison list View comparison list x   Astronomy Technologies - Astro-Tech 35mm extension tube  Our Product #:  AT35EXT In Stock:  Usually ships within one business day. This Astro-Tech 35mm extension tube is used to make up for the loss of light path when a 2” star diagonal is removed from many refractor focusers and replaced by a camera and camera adapter for imaging. It can also be used with Astro-Tech Ritchey-Chrétien reflectors to bring webcams and DSLRs to the correct focus . . . [ More details . . . ]  $29.95 Add to comparison list View comparison list x   Astronomy Technologies - Astro-Tech 50mm extension tube  Our Product #:  AT50EXT In Stock:  Usually ships within one business day. This Astro-Tech 50mm extension tube is used to make up for the loss of light path when a 2” star diagonal is removed from many refractor focusers and replaced by a camera and camera adapter for imaging. It can also be used with Astro-Tech Ritchey-Chrétien reflectors to bring webcams and DSLRs to the correct focus . . . [ More details . . . ]  $29.95 Add to comparison list View comparison list x   Astronomy Technologies - Astro-Tech 80mm extension tube  Our Product #:  AT80EXT In Stock:  Usually ships within one business day. This Astro-Tech 80mm extension tube is used to make up for the loss of light path when a 2” star diagonal is removed from many refractor focusers and replaced by a camera and camera adapter for imaging. It can also be used with Astro-Tech Ritchey-Chrétien reflectors to bring webcams and DSLRs to the correct focus . . . [ More details . . . ]  $29.95 Add to comparison list View comparison list x   Astronomy Technologies - Astro-Tech 1" extension ring for A-T Ritchey-Chrétien astrographs  Our Product #:  AT1EXT Back-Ordered:  Temporarily out of stock; will charge and ship when available. This Astro-Tech 1” long extension ring, installed between your Astro-Tech Ritchey-Chrétien astrograph and its focuser, helps you match the back focus required for your particular complement of imaging components . . . [ More details . . . ]  $32.95 Add to comparison list View comparison list x   Astronomy Technologies - Astro-Tech 2" extension ring for A-T Ritchey-Chrétien astrographs  Our Product #:  AT2EXT Back-Ordered:  Temporarily out of stock; will charge and ship when available. This Astro-Tech 2” long extension ring, installed between your Astro-Tech Ritchey-Chrétien astrograph and its focuser, helps you match the back focus required for your particular complement of imaging components . . . [ More details . . . ]  $34.95 Add to comparison list View comparison list

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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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