[The_bluester (Paul)]

Well, the PDF by Craig Stark is interesting, it suggests you might be able to extract data to something like half the arc seconds per pixel that is in the initial image, assuming it is under sampled to begin with.

That would take the 3.8 arc seconds I would see out of the Redcat and extract data more like I could expect to see at 2 arc seconds/pix, which sounds pretty interesting. I already dither between images so that is a non issue.

Unfortunately it does not make a choice between the redcat and ED72 any easier to know that tricky image processing could probably bring the level of detail recorded by the redcat up near that I would see out of the 72mm! But fitting the whole SMC in one frame would be pretty nice.