Posted by Grant Privett at 22:31 on 2012 Jul 05
As the FITS images are 300kB is there any chance you are taking images in 2×2 binned mode rather than at the full resolution? The image dimensions should be the give away.I wrote my own code for my Starlight CCD but otherwise use AstroArt 5 which seems to do the job reasonably adequately and is pretty good value these days.