P.S. - The project directory for downloading is: http://fisherka.csolutionshosting.net/astronote/photos/processing/  The applicable two zip files are: "G14 Calib.zip" 27Mb  a collection of zip folders contains flats "G14-kfisher-NGC7320-W-250-C-10-X1-Luminance-001-UT023114.fit.zip" 13Mb the raw luminance image as received from GRASS - Kurt P.S. - One thing that GRAS does not have is a table of the image processing settings for their preplanned image capture filters.  Such a table would help in terms of planning exposures by pre-tweaking their baseline settings "galaxies" "bright nebula" "dim nebula" etc.