[All Flash and Commander models] The flash fires repeatedly before the shutter is released.It is likely that the camera’s red-eye reduction flash is turned on.Please turn off the red-eye reduction emission from the camera menu.更に見る
If the flash does not work.The flash does not work, the picture is dark even when use the flash. In those cases, the strobe may be broken, but the hot shoe contacts are often contaminated...更に見る