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Old 03-06-2010, 03:34 PM
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DavidTrap (David)
Really just a beginner

DavidTrap is offline
 
Join Date: Jun 2009
Location: Brisbane
Posts: 3,043
Try a focusing mask. Take a 10 sec exposure at high ISO and zoom in to evaluate. It's amazing how far off you can be by just going for the "smallest" star.

Just my 2c worth

DT
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