OK, I put the ASI1600 on the little scope for some serious imaging (intended at least). I increased the backfocus distance to 60mm and I'm left with 1-2mm focus distance. The stars don't look good enough around the corners and there's not enough focus distance to increase the backfocus. Meh.. You could probably get away with a small decrease in resolution or larger pixels. Mine's are 3.8um, an 18MP Canon APS-C sensor has 4.2um wide pixels. Attached are a pic of the camera + adapte