16 mm film - Wikipedia
16 mm film is an historically popular and economical gauge of film. 16 mm refers to the width of the film; other common film gauges include 8 and 35 mm.It is generally used for non-theatrical (e.g., industrial, educational) film-making, or for low-budget motion pictures. It also existed as a popular amateur or home movie-making format for several decades, alongside 8 mm film and later Super 8 ...