Hi, What's the focal length for a 35mm SLR with a body cap pinhole? I'm trying to find out what size to make the pinhole.
Also, in my bathroom-darkroom I've only dealt with developing RC paper negatives and prints. I just made a camera that will use 4x5 film backs and I'm wondering if I should try using Tri-X film instead of paper. Am I correct that I have to develop the film in complete darkness? No safelight right? If so, I guess I have to get a better timer and worry more about the temperature of the developer - so far the developer temp has been way off and i've been leaving paper in the developer until it looks right. I guess that's out with film, huh? Thanks for any info, Rob
