Kodak also provides assistance to its professional customers through a staff of technical experts who help professionals as they do critical work. Casual picture-takers usually buy one or two rolls of film at a time. One roll of film may remain in the camera at room temperature for several weeks or even months before processing. The nominal film speeds of films intended for general picture-taking are provided on the outside of the film carton and in the instructions. Exposing these films at their nominal speeds will produce good results for general picture-taking situations.
All color films are perishable.
Under identical conditions, the stability of professional and general picture-taking films is essentially the same. If they are stored at the same temperature, both types of films will age at the same rate. Some special-purpose films require specific storage conditions. Always check the storage temperature that is printed on the film carton. In general, professional films are not designed for long periods of storage at room temperature.