film speed

(redirected from Film sensitivity)
Also found in: Medical.

film speed

n
1. (Photography) the sensitivity to light of a photographic film, specified in terms of the film's ISO rating
2. (Film) the rate at which the film passes through a motion picture camera or projector
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
With the advent of 35mm cameras in the 1930's, photographers could make images so quietly and quickly that they became "flies on the wall." Advances in film sensitivity and "fast" lenses followed soon after and this meant that photographers could do their work in very low light and with no flash.