Quote:
Originally Posted by glend
My GSO Diaelectric has four threaded holes in the bottom, which i have always assumed were for collimation adjustment, else why have them there.
I would ask how you actually checked the diagonal collimation? I believe it can only be done with a laser (which itself was collimated). Many lasers are not perfectly collimated as a rotation test can confirm).
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Laser that had been checked for collimation & flat mirror... I'll have to re-check to see if mi GSO has these 4 holes.. can't say I ever actually noticed, thanks Glen