|These 600EX-RT flashes work their bags off for me.|
I have some Canon Speedlights. They're great, I actually love the new 600EX-RT because of the built in radio transceivers which saves me two AA batteries per flash which would be used in a pocket wizard. Before I had those, long before they were even on Canon's drawing boards, I was using the 580EX-II. I have one of those. Unfortunately the systems aren't totally compatible, at least not in the way I want them to be, but I did find a way to make it work - what is essentially the absolute worst, most redundant workaround ever. Read on if you have a mixed bag of gear like I do.