Roger, the results that I obtained when doing less than 50% adjustments resulted in the laser heading off the face of the bevel and up the edge of the insertion cylinder. When I did a star test the collimation was way off. In fact the first time I tried using the laser the collimation was so far out I could not focus the telescope afterwards and I had to use the white paper trick to get it close enough to attempt collimation with a star.
I had thought at one stage that the laser was not true; so EXFSO and I used his jig to fine tune the alignment. It was not that far out, only about 10mm over 9m. Even after this the laser failed.
What I did find though is that focusing the laser is more than a mere turn. It frequently means doing more than 6 turns to focus and then after the adjustment having to refocus on the target. At 16m I would have thought the instrument would need little focus adjustment between both for a 10" Scope.
If anyone has got any ideas please let me know. The brochure and the instruction say that this laser will get near perfect collimation on an SCT. I must say that has not been the case.
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