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Q. …By playing with the secondary adjustment screws I was able to line the beam up with the “O ring sticker” already on primary mirror. (I TAKE IT THAT IT’S OK TO HAVE THAT STICKER THERE PERMANATELY??)
A. Yes - and you'll find even if you wash the mirror it won't come off! That sticker falls in the shadow of the secondary mirror - you aren't using that bit of your primary mirror.
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