Interchangeable flash device.

摘要

A flash device (10) for a photographing camera (11) comprising an ordinary flash mechanism, an improved flash mechanism including a part of said ordinary flash mechanism, an operation mode switching means which selectively switches the operation mode of said flash mechanisms and a control (C0) terminal which is provided in addition to terminals (X0,R0,Q0) electrically connecting said ordinary flash mechanism to said photography camera, said control terminal electrically coupling said operation mode switching means to the camera and the switch of operation mode of said ordinary flash mechanism and said improved flash mechanism being changed by said operation mode switching means in response to an input signal to said control terminal.