A rotating shutter causes stroboscopic intervals of darkness, but the viewer does not notice the interruptions due to flicker fusion. The images are transmitted through a movie projector at the same rate as they were recorded, with a Geneva drive ensuring that each frame remains still during its short projection time. The moving images of a film are created by photographing actual scenes with a motion-picture camera, by photographing drawings or miniature models using traditional animation techniques, by means of CGI and computer animation, or by a combination of some or all of these techniques, and other visual effects.īefore the introduction of digital production, series of still images were recorded on a strip of chemically sensitized celluloid ( photographic film stock), usually at the rate of 24 frames per second. 3.7 1950s: growing influence of television.
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