General > General Technical Chat
Couldn't you make a film camera that was silent by rotating an array of lenses?
Alex Eisenhut:
--- Quote from: ELS122 on August 14, 2023, 01:21:16 pm ---So instead of moving to the next frame, "stopping" the film for the exposure time, and then moving to the next frame. Instead move the film continuously and have a rotating array of lenses that follows the light to each frame without needing to stop the film on every time? Thereby making the camera near silent.
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IIRC that's exactly how very high-speed film cameras worked, like in the 1980s. I remember seeing some sort of lab footage from a "Star Wars" SDI experiment, and there was a vrooooup! sound just before the test, later I found out that's the rotating prism of the high-speed camera.
ELS122:
--- Quote from: mendip_discovery on August 14, 2023, 06:01:00 pm ---They can get up to 120db but reading an article in them they also state they use a rotating mirror to record sound...odd but I'm not a camera tech. But the sound they record is really high quality.
I think that loud cameras on set is nothing new, they just had different solutions to it back then. I wonder if it's the directors who are great visionaries but as nobody will tell them no so they want to do a wide shot and a close up but don't want any of the sound gear or film gear anywhere near the set.
I thought with the size of microphones they could hide many on set to get good sound.
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Well you don't hear the noise because they rarely record any audio on set, instead it's voice-overs in post production, prop sounds, etc.
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