Chapter 15
Cinema Technology
Projection technology is probably the longest established of any of the fields of film and video. A 1930s projectionist time-warped into a present-day theatre would recognize the equipment and would be able to operate it almost straight away with very little assistance. Indeed, they might find absolutely no difficulty at all because the projector actually dates from the 1930s, although it will almost certainly have been modified to take account of the occasional development in projection technology since then.
As you know, motion picture film consists of a sequence of still images which are projected at a rate of 24 frames per second. The film runs at this speed, not because of any visual requirements but because ...
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