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Old 20-06-2009, 04:25 PM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Sydney
Posts: 22,080
Hi Ashley, it looks like you have a slight astigmatism problem. I'd take care of this before targeting any field coma. Once it's clearer where the problem lies you can move on and sort the rest out. I assume it's a refractor. If it has any way of tilting or rotating the lenses you might want to try that first. Slight rotation goes a long way. Give it a go, see if it gets better or worse.
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