Sensitometry is the scientific study of light-sensitive materials, especially photographic film. The study has its origins in the work by Ferdinand Hurter and Vero Charles Driffield (circa 1876) with early black-and-white emulsions. They determined how the density of silver produced varied with the amount of light received, and the method and time...
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http://en.wikipedia.org/wiki/Sensitometry
(from the article `photography, technology of`) The sensitivity or speed of a film determines how much light it needs to produce a given amount of silver on development. Sensitometry is the science ... Film speed indicates the sensitivity of a particular emulsion to light. It is usually expressed as an ISO (International Standards Organ...
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http://www.britannica.com/eb/a-z/s/65
In radiology, the procedure of measuring film response to radiation. ... Origin: sensitivity + G. Metron, measure ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Is the scientific study of the response of photographic materials to exposure and development. It establishes emulsion speeds and recommended development and processing times
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http://www.encyclo.co.uk/local/21048
Type: Term Pronunciation: sen′si-tom′ĕ-trē Definitions: 1. In radiology, the procedure of measuring film response to radiation.
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http://www.medilexicon.com/medicaldictionary.php?t=80966
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