OK, I have a Canon EOS 60D. Because you can say that can still trigger lightning! But that is only possible with the built-in flash of the 60D. It makes sense to buy the right set, the difference lies in the included cable. So you can use it as a wireless remote release the set also. Now to the actual application. Flashes can be triggered in order to put the the Syncronzeit turns out shorter. The EOS 60D creates 1/250 sec with mounted flash (or internal flash). When using the wireless shutter release, the value is reduced to 1/200 sec. There is obviously a delay in the initiation to recognize the black bars in the picture In manual mode, you can set the shutter speed as desired, but is rewarded accordingly. One can complain that there is no tripod mount. Ok, I think the tripod is to use all the Neiger or umbrella holder. As the tripod socket is a minor matter. The ON / OFF switch is criticized, he can not be use with mounted flash. That may interfere with a fixed installation if you often to be setup and degrades that's no problem. And strobist know their equipment and leave it installed rarely fix.