Aloha Rob, I scanned in my old M13 view years ago, but I don't recall what kind of film it was on originally. For the new M22 photo, I took CCD images, which I still have. I suspect I clicked on the wrong star to set the color balance. Yokwe yuk, Joe --- On Sat, 6/13/09, Rob Ratkowski Photography <ratkwski@hawaii.rr.com> wrote: From: Rob Ratkowski Photography <ratkwski@hawaii.rr.com> Subject: Re: [Utah-astronomy] M22's Blue Stars (continued) To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Saturday, June 13, 2009, 11:35 AM Aloha Joe Possibly you had tungsten balanced film, old film, reciprocity failure/color shift or maybe done by the light of a 'blue moon'.  Do you make a duplicate file when you do your processing ??  and keep the original safe and untouched?? Aloha Rob _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com