Gosh I think after about 2 weeks I will have gone through around 160 rolls of film, its a good thing I brought 200 rolls not 150. I am shooting to fast and to much but I am having a really hard time reeling myself in. The other thing to remember is I am using completely manual cameras, will single film advance, manual focus and exposure. If I had some kind of fast ass motor drive, auto exposure, auto focus camera how many films would I shoot?