Photography. a graph used in sensitometry to show the relationship between exposure time and image density under constant developing conditions.
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Origin of characteristic curve
First recorded in 1900–05
Also called sensitometric curve.
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British Dictionary definitions for characteristic curve
photog a graph of the density of a particular photographic material plotted against the logarithm of the exposure producing this density
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012