http://dslrvideoshooter.com/episode-14-cold-shoe-bracket-for-on-camera-accessories/ Remember the NGR mount I talked about a while ago? Well sadly its out of stock, but I found an alternative!
Watch a live Demo, shot at DEMA 2014 of the Sea & Sea Optical TTL Converter in action. This converter bypasses the camera's flash and plugs into the hot shoe for less drain on the camera battery. In addition, since the onboard flash is taken out of the equation, the strobe is no longer limited by the slow recycle rate of most onboard flashes so that you can make full use of the super fast recycle rate of the Sea & Sea strobes for fast accurate shooting.