Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
exposure value
exposure value
Noun
pl: exposure values
This term is a technical specification used primarily in photography and cinematography. It provides a standardized way to describe the total light exposure regardless of the specific combination of aperture and shutter speed used to achieve it.
In professional contexts, it is often abbreviated as EV. Because it represents a logarithmic scale, a change of one EV represents a doubling or halving of the light reaching the sensor, making it a critical tool for precise light metering and exposure calculation.
Meanings
Related Words
apertureshutter speedISOexposurelightphotonsensorfilmcameralensdiaphragmf stopstopbrightnessluminanceilluminanceluxphotometerdynamic rangeoverexposureunderexposurehighlightshadowcontrasthistogramreciprocityshutterfocal lengthdepth of fieldbokehflashstrobelightingexposure compensationbracketmeteringexposure timesensitivitygainnoisegrainpixellatitudesaturationgammatonalityopticsrefractiondiffractionvignettingchromatic aberrationirradianceradiance