I learned photographing by first shooting and developing Kodalith film. The subject had to stay still for many seconds it was like 19th century photography. This has always been my favorite portrait of a fellow art student at the time.
Kodalith film: a high contrast film used in the graphic arts. Normally it produces just white or black image with no tonal ranges. By changing the exposure and developing times you can get some detail into it, but nothing like a normal film. Its ASA rating is 8 when used with tungsten light. It is a Ortho film so can be used under a red light.