luni, 26 mai 2014

Dry plate photography?


Question by Verxin: Dry plate photography?

Can anyone tell me why this type of photography would be good for action shots?


Best answer:


Answer by monophoto
Dry plate photography was the second step in the evolution of conventional silver-based photography.


The first step was wet-plate photography. In wet-plate photography, a plate of glass was sensitized with a silver nitrate compound, exposed to the scene, and processed before it could fully dry. As a result, the process of wet-plate photography was only suitable for subjects that were stationary such that the camera could be set up in advance of sensitizing the plate.


The innovation in dry plate photography was that the emulsion was applied to the plate in the factory, and could be exposed at just about any time thereafter. Therefore, it was possible to set up the camera and then wait for the subject to present itself for exposure. Obviously, this was more conducive to situations where the scene was changing (ie, action).


Both wet-plate and dry-plate photography involved emulsions applied to sheets of glass. The next step in the process was to apply those emulsions to a flexible substrate. That was the beginning of film.


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