I occasionally shoot 250 frame cassettes of 35mm film in my Zeiss Contax RTS-II with long roll film back/intervalometer. I develop the B&W negative film myself in a 35mm Honeywell/Nikor 50 foot reel and tank system. I also shoot 250 frame color negative (motion picture stock) and I have that developed by a Burbank, CA motion picture film processing lab and single light printed (so I have 250 proof slides).

When I do this it is basically a documentary/data recording exercise - not fine art photography.