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film speed

   Also found in: Medical, Legal, Financial, Encyclopedia, Wikipedia 0.01 sec.
film speed
n
1. (Miscellaneous Technologies / Photography) the sensitivity to light of a photographic film, specified in terms of the film's ISO rating
2. (Performing Arts) the rate at which the film passes through a motion picture camera or projector
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On an adjustable camera you want to increase the film speed (ASA to traditional films), open wider objective (f-stops are measured in numbers, the more the larger size of the lens opening and the faster exposure), or use a flash.
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