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.
Flash synchronization
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In photography, flash synchronization or flash sync is the synchronizing the firing of a photographic flash with the opening of the shutter admitting light to photographic film or electronic image sen
An example of improper synch. Either the flash is firing too late or the shutter speed is too fast (shutter moving vertically). Note the different exposure levels.
PC-socket