Bi-amp near field monitors.
1 430EX Group B Slave 1/4 power snoot/grid camera left
1 580EX Group A Master on camera disabled used only has trigger.
Camera metered 1 stop under for the LED
Setup shot can be seen here
Photo can also be seen at i.gizmodo.com/5215606/submit-your-audio-photos-to-the-giz...