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Just so happens I was collimating with my QC earlier this evening. I use the reticle feature in K3 CCD Tools to help with judging the offset/misalignment of the ringlets. Basically, use the software to zoom in till the edge of the star fills one of the outter circles of the reticle on the screen then adjust focus accordingly to get the ringlets.
I find it's alot more convienent and quickier standing in front of the scope and laptop using the AutoStarII to slew the image back to the centre of reticle after each adjustment then trying to reach around fiddling with the screws while lookin through the eye piece then having to stop and adjusting to get the image back in fov.
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