The MD-50SM from Falcon Eyes is a universal 50W slave flash with variable control. You easily screw the slave flash into a standard E27 power socket. The flash is triggered by testbutton, remote control with the build in sensor (max. 15 meters) or with the sync cord that is included. When your camera doesn't have a sync connection, you will need the HS-25B hotshoe (see optional accessories) to connect the slave flash to your camera, using the synchonisation cable.