A specific camera will only accept one type of film. For example, a 35mm camera only accepts 35mm film. Cameras that use the advantix photo system only accept advantix film. There are 4 main speeds of film for 35mm cameras 100 SUNLIGHT 100 speed film is excellent color print film for sunny or bright light photo opportunities. It is good for close-ups, posed photos, and landscapes. 200 ALL-AROUND 200 speed film is a general multipurpose film with extremely fine grain, producing soft, natural skin tones for people shots. 400 EXPANDED MULTIPURPOSE 400 speed film is the most versatile film for compact, automatic 35mm cameras. It is great for candid snapshots and sports action. It can be used for low light or flash, outdoor or indoor. 800 FASTEST MULTIPURPOSE 800 speed film has ultimate versatility for snapshots and fast action. It is ideal for use with zoom lenses. It has a fine grain with hight speed. This film can be used for indoors, outdoors, and fast action. Advantix film has 3 main speeds. 100 BRIGHT LIGHT/ENLARGEMENTS 100 speed is good for enlargement. Use it for bright sunlight or when a flash is needed. 200 MAXIMUM VERSATILITY 200 speed is for use indoors or outdoors with or without a flash. 400 LOW LIGHT/FAST ACTION 400 speed is good for fast action in a wide range of light conditions. It is perfect for sports action.