I have a Pentax K-1000 camera and it's worked perfectly fine until one day i tried to develop one of my rolls of film at Target. When my negatives were processed, it showed that nothing had been exposed onto the film at all. (but my film was not exposed to light) it was just blank. It was strange so I thought I needed a new camera considering that one was old. However the strange thing was that the shutter still opened and everything functioned as normal, battery was fine and everything. I just got a new camera. A Minolta QTsi, and I had the SAME issue! Everything in the camera WORKS. I'm starting to think that maybe it's Target? maybe they have the chemicals wrong in the machine? I've seen other film go through there before (I work at the dept next to the photo dept) and i've seen pictures come out before! Also I think I should mention that my film hasn't expired either. Any suggestions on what this could be??