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thanks guys i hear what you are saying, however i have changed adapters and such like before and still managed to see a central doughnut regardless, and i thought i had very good collimation on maximum magnificatio at f40 and upon changing it down to f6.3 found the collimation way out!
do you guys think it should be that far out changing adapters and such? if yes i shall just have to put up with it, however i thought it should be good if i managed to collimate it at the f/40, but as i said did not look good at f/6.3
pat
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