16mm (photographic film size)
- Describes motion picture film that is 16 millimeters wide. In silent films it is perforated on both sides; in sound films only on one side, the other being used for the sound track. It was introduced in 1923 for the amateur market, and evolved into the common medium for home movie makers and filmmakers whose work was not intended for general theatrical release. Film of this size is typically used for independent films, documentaries, and films made for educational purposes.