Eli5: Why does a camera have to flash and time it perfectly when it takes a picture? Can’t the light just stay on?
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I might be missing it but I don’t see anyone talking about the human factor. If people are adjusted to the lighting of the room they are in and a flash is needed to take a picture, the camera takes the picture before the subjects react to the intense lighting change. If the flash wasn’t directly before the picture was taken and was instead a prolonged intense light that started moments before the picture was taken, the photo would capture the subjects unintentionally squinting.
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