What film to count on being available for high quality architecture and landscapes?
I have come back, or want to come back to film photography to gain large image quality. After an absence of a couple years I decided I want to use my Sinar 4x5 to shoot architecture and urban landscapes. The images I get from my DSLR's just are not cutting it and I don't have the cash to shell out for a pro digital back. I thought why not get a decent scanner, break out the film camera and go to work. I have the equipment why not put it back into service? But now am discovering that the films I wanted to use are almost impossible to get? I am looking for suggestions on which products are available and may remain available for the foreseeable future? I used to shoot Ektichrome, Tri-x and do Polaroid test shots. I would like to shoot color transparency as my main format. I would really appreciate your suggestions for film, processing and sources? Thanks!