Quote:
Originally Posted by multiweb
Have you checked the tension on the secondary 3 collimation screws?
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Yup - tested them after I took the images with live camera feed on focus - plus a few other tests as well - this website
http://www.loptics.com/ has a good article "Why arn't my stars round" gives good information into why the malformation of stars occurs - he should have a reasonable idea on what he he talking about - he builds the custom mirrors for the big SDM Dob's.
Cheers
Geof Wingham