Analog photography, known as film photography, is a term for photography
that uses chemical processes to capture an image, typically on paper, film
or a hard plate. Analog is a word used to define what a video signal was
before digital came along. These photographic processes were the only
methods available to photographers for more than a century prior to the
invention of digital photography, which uses electronic sensors to record
images to digital media. Film cameras use photographic emulsions, light
falling upon silver halides is recorded as a latent image, which is then
subjected to photographic processing, making it visible and insensitive to
light.
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