Quote Originally Posted by Roundabout View Post
Just scanned another frame, from a different roll, and it seems fine.

Edit: Although that was developed by a different lab.

This is a new (for me) camera (Nikon FM2n), so perhaps I ought to put it in for a CLA. But it seemed so well preserved, that I thought I'd get away with it. Even the light seals seem pretty good.
If both rolls went through this same camera then the camera probably isn't the variable causing the problem.