Super 8 mm film

Super 8 mm film, also simply called Super 8, is a motion picture film format released in 1965 by Eastman Kodak as an improvement of the older 8 mm home movie format, and the Cine 8 Format. The film is 8 mm wide, exactly the same as the older standard 8 mm film, and also has perforations on only one side. However, the dimensions of the perforations are smaller than those on older 8 mm film, which allowed the exposed area to be made larger. The Super-8 standard also specifically allocates the rebate opposite the perforations for an oxide stripe upon which sound can be magnetically recorded. There are several different varieties of the film system used for shooting, but the final film in each case has the same dimensions. By far the most popular system was the Kodak system. Launched in 1965, Super-8 film comes in plastic light-proof cartridges containing coaxial supply and take-up spools loaded with 50 feet of film. This was enough film for 2.5 minutes at the U.S. motion picture... full article at wikipedia