Damn... Just picked up two developed rolls of film that I've taken on my mamiya NC1000 that I got a couple of weeks ago. These were the first rolls of film i took with it so i didn't know how they would turn out. Turns out there probably is some kind of crack or something in the camera so both rolls got overexposed to shit.. There were a few shots (5-6) that turned out normal, but all of they were double exposed by some reason..
Oh well, i've learned my lesson. Next time i won't shoot two rolls before developing the first i shot.