Photog.
a number indicating the increased exposure that a particular film should receive when a photograph is taken using a particular filter.
[ 1920-25 ]
Photog.
a number indicating the increased exposure that a particular film should receive when a photograph is taken using a particular filter.
[ 1920-25 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012