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Lighting Design Glossary

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Aperture

(Term of photography)

The relative size of the lens opening in a camera, expressed as an number (with prepended "f", eg: f8). The counterpart to the aperture is the shutter speed, expressed in fractions of a second. If the numerical product of aperture and shutter speed are the same, then the amount of light entering the lens is the same. This amount is called the exposure.

 

References:
   exposure
 
 
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aperture    Die Blenden√∂ffnung
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