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Title: Go for a Laser
Review: I bought this for my Celestron 127mm reflector and it is horrible to collimate with. I spent days trying to collimate and was getting more frustrated by the hour and day. I set the collimating tool down and just happened to notice the center viewing hole is off center!Bought a laser collimator and, after marking the center of my primary I was, in a manner of minutes, was able to collimate the scope.
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