A gauge of motion picture film, 35 millimeters wide from edge to edge, with perforations on both sides. Used by Thomas Edison in his Kinetoscope, a personal film viewer patented in 1887 and introduced [..]

The most popular type of roll film. Measuring 35mm wide, the film strip runs horizontally and has small perforations on top and bottom that mesh with the camera's film winder gears. Popular types include black and white, colour, and slide film, and are produced in a variety of light sensitivities depicted by ASA or ISO ratings.