component of a photographic camera From Wikipedia, the free encyclopedia
In photography, a shutter is the part of a camera that opens for a controlled period of time to let light in during taking a picture.
A shutter can also be used to allow pulses of light to pass outwards, as in a movie projector or signal lamp.
Camera shutters can be fitted in two positions:
Shutters immediately behind the lens were used in some cameras with limited lens interchangeability. Shutters in front of the lens were used in the early days of photography.
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