Quote:
Originally Posted by Bassnut
Excellent work Marc, even zoomed in at 400%, detail in the core is very good. Ive seen some strange star distortions in some of your other images that maybe guiding related, but not with this one (apart from possible coma or whatever Rich points out, not that bad really)
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Thanks Fred. Previously on axis I had some nasty astigmatism. Crossed stars. My diagonal plane was tilted and my primary also rotated on its axis. I've fixed those two things since then so on axis is as good as the scope resolution will be. The outside of the field... well, it's a different story. I need to find a way to accurately space my coma corrector. At the moment it's really bugging me coz I have to play with star masks and deconvolution and it's a lot of stuffing around to "hide" things.