Hi Gary. I own a Meade LightBridge 12" F5 (as you probably recall), mostly for visual, but recently trying to turn it into an EAA platform - that's why I was asking about the ASIAir. I had no backfocus issues with a ZWO ASI1600MC/C and Baader MPCC/filters/etc. so far. I don?t have any deep space image to show you, but here some planetay images I was able to gather in some sessions in the past - focus should be the same both planetary and deep space.
HTH. Sincerely,
Ricardo.