15Sensitometry
The objective study of the response of photographic materials or other imaging systems to light or other radiation is called sensitometry. It is concerned with the measurement of the exposure that a material has received and the amount of the resultant image. In conventional silver-based photography this is assessed by the amount of blackening, silver-image formation, which takes place. It is possible to produce photographs without any knowledge of sensitometry, but to obtain the best performance out of photographic systems, under all conditions, an understanding of the principles governing the response of imaging systems is invaluable. A knowledge of at least an outline of sensitometry is therefore highly desirable for anyone ...
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