I'm lazy

I use three YN-560 III lightning. Two on lamp stand with screen Eiger and Umbrella and one for the background or just head light. Together with the 603 RF could cause the parts well. But with this controller, you can now adjust the strength and focus. Especially the control of the zoom is awesome because you can regulate the light characteristic simply by remote control in addition to the intensity now. The cone of light a little too wide? A little more push and you have what you want.