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A portable flash gun which can be coupled with an automatic camera and can then be controlled by the camera's programmed functions.
Related Terms
An accessory shoe on a camera that has electrical contacts to trigger and
synchronise a flashgun when the camera's shutter fires. More sophisticated
cameras have several connection pins for advanced communication between the
camera and flash. As well as setting the camera's correct shutter speed, these
dedicated pins can also control exposure and focusing modes.








