l has various meanings in the Photography category. Discover the full forms, definitions, and usage contexts of l in Photography.
An empirical measure of the quantity of light. It is based upon the spectral sensitivity of the photosensors in the human eye under high (daytime) light levels. Photometrically it is the luminous flux emitted with a solid angle (1 steradian) by a point source having a uniform luminous intensity of 1 candela. Standard unit of measure for light flux or light energy. Lamp light output is measured in Lumens. It measures the rtotal amount of visible light emitted from any light source. It is SI derived unit of luminous flux. symbol is im.
PhotographyA blueprint for how questionnaire items are to appear in a printed questionnaire. A Look controls which information held in the questionnaire definition for the questionnaire item is displayed and controls how that information is positioned and formatted.
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