Justin:(posted 8447 days ago)I doubt very seriously that this problem has anything at all to do with the processing of the film. This was more than likely an optical problem. The vignetting could have been caused by a number of things. Did you use one or more filters on the lens? Did you use a lens hood (some call it a shade)? If so, did you use it along with the filter or filters? What was the focal length of the lens? Wide angle lenses have this kind of problem quite often if too many filters or the wrong hood are used. Was the lens a zoom? Some zooms can vignette, especially with filters and hoods attached. I'm sure that one or more of the things I've mentioned is the cause of your problem.