Excellent application! Just what I was looking for. Not as many options as Kieth's Image Stacker but the ease of use and dark/flat field integration are excellent. Would be nice if it accepted more input file formats (like Canon Raw, FITS etc.). Would also be nice if the final image tinkering pane could have a "no adjustments" setting to allow all post-processing in photoshop (or similar). Keep up the excellent work.