an instrument for measuring the intensity of light in a certain place or upon a certain object, having an adjustable scale for determining the optimum relations of shutter speeds and stops at each intensity.
Origin of exposure meter
First recorded in 1890–95
Also called light meter.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
photog an instrument for measuring the intensity of light, usually by means of a photocell, so that the suitable camera settings of shutter speed and f-number (or lens aperture) can be determinedAlso called: light meter
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