The mechanics of the first photographic systems can be understood through two essential contexts:
It was invented by the French physicist Joseph Nicéphore Niépce in 1820, through an experiment in which he used a varnish solution on a metal plate exposed to light, thus originating the first photographs captured and recorded.
The first photographic cameras capture images by exposing a metal plate to iodine vapors that formed a layer of silver iodide under the plate that was then stored in dark chambers that turned into heated mercury vapor when such plates were exposed to light, revealing the images.
Therefore, currently photography has developed with the emergence of new technologies, becoming digital and accessible to the end user through cameras attached to smartphones that allow the amount of photographic records that the user wants.
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