Thread: 10" GSO dob and prime focus photography
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Old 14-04-2009, 07:39 AM
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peter_4059 (Peter)
Big Scopes are Cool

peter_4059 is offline 		 
Join Date: Jun 2007
Location: SE Tasmania
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If the point of focus is within 10mm you can move the primary mirror forward 10 mm on longer colimation bolts/springs quite easily. I did this to achieve focus with the DSI II/filterwheel.
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