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  #17  
Old 22-05-2008, 06:16 PM
Ian Robinson
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Ian Robinson is offline
 
Join Date: Jan 2007
Location: Gateshead
Posts: 2,205
All that is true , you can easily calculate the size (in arc-seconds) of a pixcel on your guide camera , and more importantly , on the imaging camera given the focal length of the scope or lens..

It is pointless aiming at better than the pixcel resolution of the imaging camera as there is nothing to be gained for a lot of extra work (and expense).
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