Thread: Is f/7.5 too slow for imaging? - ED80
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Old 28-07-2008, 06:49 PM
gbeal
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gbeal is offline 		 
Join Date: Oct 2004
Location: New Zealand
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No way, not at all. I sometimes image with my ED80/840 refractor, so f10.
Try it, with and without the reducer.
Gary
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