26-09-2012, 11:02 AM
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This sentence is false
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Join Date: Oct 2008
Location: Melbourne
Posts: 1,158
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Quote:
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That is field curvature. You can get rid of this by using either a reducer or a field flattener.
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The shape of the stars in the corners is not symmetrical, so the above statement is not helpful.
Put a bright defocused star in the exact centre and post a picture for us to look at.
James
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