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Fastar Secondary Turns When Tightening the Retaining Ring

Several owners have reported that when tightening the retaining ring the entire secondary assembly turns.  This is a bad thing, since the optical quality of the scope is dependent upon the primary mirror, corrector plate and secondary mirror all having a set orientation.  On my scope, I found it was not possible to tighten the secondary housing without removing the corrector plate.  Read here to see how.


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