SYSTEME DE COMMANDE DE FLASH EXTERNE

摘要

A flash control system remotely controls a an external flash by a camera. In the camera, a first factor is calculated to determine an amount of a flash-light to be emitted from a built-in flash of the camera, and a second factor to determine an amount of a flash-light to be emitted from the external flash, a total amount of both the flash-light emissions of the flashes corresponding to a proper exposure with which an object should be photographed. The built-in flash emits two light signals therefrom at a time interval such that the second factor is represented by the time interval between the signals. An amount of the flash-light emission of the external flash is controlled according to the time interval such that the flash-light amount of the external flash coincides with the second factor.