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Old 05-07-2016, 05:13 PM
glend (Glen)
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glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,121
That is not a good holographic diagram, you can clearky see that tye light rings on the left are thicker than the right. Basically you have something tilted. Have you gone through the basic steps of aligning the focuser with the secondary centre spot? What other tools do you have, like a Cheshire tube, or TAK collomation scope? What size RC is this?
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