The actual aspect ratio of that film will be determined by the camera you put it in, and for the first medium format SLR camera on this list, we are looking at 6x7 ratio for the Asahi Pentax 6x7.

Among them is Reddit user [elelcoolbeenz], who has produced their own medium format camera for 120 roll film. The camera has a plastic 3D printed body and a single meniscus lens, and perhaps most ...

If you're getting into film photography and have been doing some research, you might have encountered 120 medium format film.