Has anybody else had problems with regular vertical strips of fogging appearing on their negative when using the above slot in back? I’ve only used the back on 3 or 4 trips since I bought it and most (not all) films show these stripes. I can’t figure out whether it’s due to bright conditions, bad back closure, winding the film through without reinserting the slide (don’t do this all the time) or perhaps simply the same black magic juju that’s robbing me of my last frame on every film. If the thing wasn’t so costly I would probably have applied some hammer maintenance on the thing by now.

Any (helpful) comments would be appreciated before I send a rude letter to Calumet.

M