What is the light-sensitive material in traditional cameras? Detailed Oh

Upstairs said so professional estimate can not read ah, the simplest is the bone glue as the basis, film with silver salt reaction, when the light through the optical lens to reach the photographic film, film has a single layer or multi-layer photographic emulsion layer, according to the amount of light intake, will be in the formation of a chemical reaction on the chassis, you can see the scene you recorded.

The film base and so on is estimated that you do not understand, said it will not immediately understand, go check Baidu yourself.