I ha one more thought, could it also be vignetting from the taking lens of the DSLR? It worse double vignette from the combination of original lens and second taking lens for the "scan"?
~Stone | Sent w/ iPhone using Tapatalk
It could. But I have tried different lenses with exact the same result so I don't think so. I have also tried a setup that gave me horrible vignetting. I think that I had two problems to start with. First there was some dev error and when I think I got that sorted out this scanning error showed up (was kind of hidden behind the dev error) and both of them did strange things to the edges of my pics. But with the last developed roll and a better job done with the scanning the results starts to look the way I think it should. Next roll will tell me if I'm on the right track.