Shutter speed

In photography, shutter speed or exposure time is the length of time that the film or digital sensor inside the camera is exposed to light when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time. 1⁄500 of a second will let half as much light in as 1⁄250.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0

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