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Dx-coding
Глоссарий по фотографии |
A system of film cassette coding and in-camera pins that informs the camera`s exposure system that a specific speed and exposure length film is loaded. most modern 35mm cameras have this feature.
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Reflex viewing system, английский
A system of mirrors in an slr that makes the scene right-reading in the camera`s eye-level viewfinder.
Depth of field preview button, английский
A switch, button, or electronic push-button that allows for preview of the depth of field of the set aperture in the viewfinder. during composition the lens is wide open, thus the depth of field in the viewfinder is always that of the maximum aperture of the lens. it is very useful for critical selective focus shots; although some rightfully consider it no more than an approximation, others feel that an slr lacking a depth of field preview function is greatly diminished as a creative tool.
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