Works on MDGs EM5 after a little hack (welding to be performed between two pines, even phobic soldering iron can be done).
The trigger cable has a proprietary connector, but if you still have your soldering iron, do like me, buy a wired remote control to MDGs cheap, cut the cable, a soldering iron shot and shoo, now you RF603 can use them as remote trigger more!
Price / / unbeatable features!