Automatic film information reading method and device

摘要

A film information reading system for automatically reading film information such as film sensitivity from code patterns on a film cartridge mounted in a cartridge chamber of a camera. The code patterns comprise a six code areas arranged axially of the film cartridge. The reading system comprises a first electric contact to contact at least one of the second to fourth code areas, a second electric contact to contact the fifth code area, and a third electric contact to contact the sixth code area. The second and third contacts are in a short-circulating relationship. A film information readout circuit is connected to the contacts for reading the film information from conductive, and non-conductive states between the first to third contacts provided by the code patterns.