Thread: Astigmatism caused by secondary mirror
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Old 10-06-2007, 12:45 AM
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avandonk
avandonk

avandonk is offline 		 
Join Date: Aug 2005
Location: Melbourne
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Is the astigmatism in line with the ellipsoid of the secondary? If it is then it could be the culprit. If not what is the orientation?

Bert
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