So when I started my photo class back in January our first project was to take photos with pinhole cameras and photo paper. Now I would like to get a pinhole body cap for my Nikon F3 (and maybe my K1000) but I was wondering if this is a good idea or not. I like the looks of pinhole but I am not the best at exposing it - when we where using the oatmeal box pinhole cameras I underexposed all my photos. I am not sure of any techniques on how to expose the 35mm film. Does anyone have any suggestions?