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Old Thursday 16th June 2011, 00:43   #20
henry link
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Join Date: Feb 2004
Location: north carolina
Posts: 4,132
The common defects in an 80mm scope will be visible at 60x. Nearly all the problems that show up in star test will be in the optics train before the eyepiece. It may be the objective or the prisms or both but that doesn't matter too much since you can't separate them.
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