How do cameras work?
In: Technology
The light uses a prism to capture a spectrum, which is then used to redeposit colour and make a still. So basically the light bounces of some glasses and uses ink (or if it’s a digital camera code) to take a stilled version of that light. A video is just that over a bunch of seconds, so like when you go to a photo booth and you have those strips of different photos you can pose for? It’s a bunch of those sped up. That’s also why video files are so big, because it’s essentially thousands of little pictures. Like sped up, in depth stop motion if you will. Hope this makes sense.
Depends on the technology involved.
A film camera exposes a sheet of photo-sensitive chemicals (film) to light, the chemicals react and the light is ‘burned’ into it, preserving the image.
A digital camera replaces the sheet of chemicals with a grid of photo-sensitive… sensors. Each sensor detects one of the three primary additive colours, Red Green and Blue, and are usually distributed in a [Bayer Filter](https://en.wikipedia.org/wiki/Bayer_filter) arrangement. When exposed to its corresponding light each sensor puts out a voltage proportional to the amount of light it detects, these voltages and their intensity is recorded by the camera and can then be represented on the other end as a digital image.
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