Thread: Orion Wide Field
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  #19  
Old 19-03-2010, 08:29 PM
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bojan
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Quote:
Originally Posted by Octane View Post
I ask as I will be purchasing the 400mm f/5.6L USM shortly to use on the STL-11000M.

H
It just came to my mind.. Will you be able at all to focus USM lens without Canon camera??
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