CineStill 800235 50Daylight Fine Grain Color Photographic Film 35 X 36 Color Balanced Daylight (5500K) color negative motion picture film stock for use as still photography film ISO 50/18 Degree in C-41 or ECN-2 Process Factory spooled into high quality 135 Non Dx-Coded Cartridges Rem-jet backing free, resulting in a unique halation effect Boasted to be the world's finest grain film!