I'm an amateur using pro lenses on a consumer body.(f65) I've been having trouble with scratching of slides from various labs but I'm not entirely convinced that the camera isn't occasionally contributing to this. I'm wondering if I would be better off with an f80. My rational is that since the f80 is pro-sumer body, it might be designed in a more scratch conscious manner than the f65(since the low end bodies tend to be used by print film users where scratches aren't as evident.) I was wondering if anyone might comment on any scratching experiences with the f65 or f80 and, in particular, if there exists a noticeable difference in design philosophy in terms of the film advance mechanism.