Film stock

Common card · No. 239503

Film stock is a type of photographic film that is used for recording motion pictures or animation. On either side is the film edge (also called a rebate border) which can contain perforations, projector feed directions, the audio track, and other information. It is recorded on by a movie camera, developed, edited, and projected onto a screen using a movie projector. Photographic film consists of a long strip of transparent plastic film base, coated on one side with a photographic emulsion: a mixture of gelatin and microscopic light-sensitive silver halide crystals. A very short exposure is made, producing an invisible latent image in the emulsion, which can be chemically developed into a visible photograph. Most movie film records a negative image and a reversed print onto another reel of film is needed to project from. Many commercially recorded films use a digital intermediate step, in which film is scanned digitally for editing, and either printed from the digital file onto a positive...

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