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8" GSO and canon 40D strange stars
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13-09-2009, 10:07 PM
TrevorW
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Join Date: Aug 2006
Location: Western Australia
Posts: 7,864
Check collimation how do the focal rings appear out of focus ae they concentric
I know when collimating mine two ehads are better than one
a recent Ronchi test conducted on my mirror indicated nothing out of the ordinary
TrevorW
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