Thread: Skywatcher Auto-tracking dobs
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  #12  
Old 17-12-2009, 02:57 AM
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Vartigy
Making the Kessel run...

Vartigy is offline 		 
Join Date: Jan 2009
Posts: 161
Quote:
Originally Posted by Peter Ward View Post
Unless you have a field de-rotator it will be rather useless.
How so? Whats the function of it, and what does it correct?
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