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Slump in a refractor
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27-05-2017, 02:55 PM
raymo
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Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
I think you might have some slump, regardless of whether the flattener is the right one, because the stars at the bottom right corner seem to be more elongated than those in the other three corners.
raymo
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