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
Flash (photography)
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A flash is a device used in photography that produces a brief burst of light at a color temperature of about 5500 K to help illuminate a scene. The main purpose of a flash is to illuminate a dark scen
Flash synchronization
…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 sensor. In cameras with mechanical (clockwork) shutters…
The high-speed wing action of a hummingbird hawk-moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse-square law.
Demonstration of a magnesium flash powder lamp from 1909
Vintage AHA smokeless flash powder lamp kit, Germany
Ernst Leitz Wetzlar flash from 1950s