94141 - Celestron Telescopes Focus Motor for NexStar 5 and all 5" Schmidt-Cassegrain models , 94142 -Celestron Focus Motor w/ Separate Hand Control for all 8" and 11" Schmidt-Cassegrain models:
93515 - Celestron Motor Drive SA, is not compatible with the Astro Master CG-3 Mount,
These Celestron Motors allow you to focus the telescope electronically, instead of manually. The motorized focuser eliminates the possibility of bumping or shaking the telescope when focusing. The Motor speed is variable, to make fine focusing a snap. Features of Celestron Telescopes Focus Motors (# 94141 , 94142 ) :Allow
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