Karen - Question - on the Canon wireless system ... do you find that you flashes need to be in a clear line of site with one another? Or is that something that was tweaked/improved after the 580? I find my sensors need to be ... in some sort of direct path to work. Clearly I need to just watch your videos! :) Thx for posting this!
Melissa Jill - Hi Karen, For the 600EX-RTs you do not need to be in line of sight for them to work. They communicate via radio transmission and I’ve found them to be very consistent and reliable even through walls. Hope this helps!