Cameras {movie camera}| can have a shutter that repeatedly opens for 1/30 second. Cameras use holes in film sides {sprocket, film} to position new film frame behind lens, 16 or more times a second. Cameras hold film frames for 1/30 second. Cameras repeat the process. Film moves by gears pulling film at film sprockets. Take-up reel turns as main reel turns.
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Date Modified: 2022.0224