Shutter (photography)
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In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of
An early (1875) rapid acting shutter by A. A. Pearson of Leeds
A focal-plane shutter. The plastic curtains travel vertically.
One diaphragm shutter opening over another in an Akarex camera
Dial-set three-leaf Compur shutter, partially open.
Shutter speed
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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 th
A spoon falling in water, taken at 1⁄2000 s
The shutter speed dial of a Nikkormat EL
Slow shutter speed combined with panning the camera can achieve a motion blur for moving objects.
An extended exposure can also allow photographers to catch brief flashes of light, as seen here. Exposure time 15 seconds.