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Old 21-05-2006, 10:36 PM
toc (Tim)
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Join Date: Mar 2006
Location: Victoria
Posts: 863
What exactly is a Crayford focuser?

Um, kind of embarrassed to ask this, but what is the main difference in use between a so-called crayford focuser, and a rack and pinion focuser?

Ive only ever really used the rack and pinion on a very cheap scope, and then the SCT style focusing systems. (which I quite like)
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