Great detail indeed! In my experience, you wont experience vignetting with the GSO RC and an ST10, although my imaging train did not have a filterwheel, MOAG or AO... Alll of that COULD cause vignetting, although, again, given the size of the KAF-3200ME sensor, I wouldnt think so..
Good image Stuart, Looking forward to seeing more from the 8" RC + ST10 combo! (I miss my 8" RC and ST10..

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