These days, the film projector has largely been relegated to a nostalgia prop, mostly seen in movies or television that take place in the early or mid-20th century. It’s easy to forget about the incredible inner workings of the machine itself. We really enjoyed this 2015 video from engineerguy on YouTube that explains film projector technology in great detail.
Bill tears apart a film projector to reveal the amazing mechanisms used in the pre-digital age to trick the mind into seeing a moving image. He uses high speed photography and animations to show how the projector moves the film intermittently, how a shutter strategically blocks light as the film moves, and how the photo sensor reads the sound. He explains how all these mechanisms are synced.
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