So, I’ve been watching alot of atomic bomb test footage from the 1950’s. And almost every single time the background is black, Is this because the cameras are shooting on black and white film?
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The real reason the backbground is black is because the exposure time was very, very brief. Microseconds or less. This was done with a [rapatronic camera](https://en.wikipedia.org/wiki/Rapatronic_camera) which used an electronic shutter that could take extremely short exposures. It did this without any moving parts.
The bomb is very bright and there simply isn’t enough time in a microsecond for enough sunlight to be exposed on the film to be seen.
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