photoelectric exposure meter
1photoelectric exposure meter — photoelectric exposure meter, Photography. a type of exposure meter in which the light on a subject is measured by a photoelectric cell …
2Photoelectric exposure-meter — Фотоэлектрический экспозиметр …
3photoelectric effect — Physics. the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface. Also called photoemission. [1890 95] * * *… …
4photoelectric meter — /ˌfoʊtoʊəˌlɛktrɪk ˈmitə/ (say .fohtohuh.lektrik meetuh) noun an exposure meter using a photoelectric cell for the measurement of light intensity …
5photoelectric meter — Photog. an exposure meter using a photocell for the measurement of light intensity. * * * …
6photoelectric meter — Photog. an exposure meter using a photocell for the measurement of light intensity …
7Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… …
8Selenium meter — A selenium meter is a light measuring instrument based photoelectric properties of selenium. The most common usage of such light meters is measuring the exposure value for photography. The electric parts of such a meter are an electromagnetic… …
9exposuremeter — exposure meter © School Division, Houghton Mifflin Company n. A photoelectric instrument that measures the light intensity in a given area and, in photographic use, indicates the correct settings for an optimum exposure. Also called light meter.… …
10Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… …
