I have by chance acquired some old lenses for 8mm film. I want to shoot with them onto 35mm film and print the entire image circle. I want to be able to compose and focus the shots on a glass, however. Anybody have any info that might help me find or make a 35mm back for a 2x3 camera? Perhaps a Speed Graphic. If there was a 35mm back for 4x5, I could make that work very easily, although kind of a shame to carry a whole 4x5 around. Perhaps it could be built around a Diana 35mm back if I design a darkslide for it.