Film

See also Film

Initially, film constituted the movement that is perceived when a string of celluloid-recorded images are projected at a rate of more than 16 frames a second (see persistence of vision). Originally film was shot at 16 frames per second, but was changed to 24 frames per second with the introduction of sound. Other improvements since the late 1800s include the mechanization of cameras, allowing them to record at a consistent speed, and the invention of more sophisticated filmstocks, allowing directors to film in increasingly dim conditions. Since the advent of many other media technologies, film may include a broad range of media--both linear and non-linear, dramatic and informational, motion and still (though progressive).

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Common terms