Post #4419105

I haven't had this myself, but since the leak looks white, I would assume it's on the front of the film. That would leave the lens, viewfinder (as already mentioned in the thread) and body as the most likely culprits. If testing for light leaks through the viewfinder doesn't help, you might have to consider if there could be leaks in the body itself, e.g. around the lens mount or through some small crack.