Well, assuming I can find a spot with no direct sunlight and want to setup a single directional light, the easiest thing for me to do is use the 580EX off-camera with a modifier I already have with hotshoe adapters, like the 22" beauty dish or 24"x24" Ezybox softbox. While not very
big light sources, I could use a reflector to bounce some of the light back for fill. Is this worth considering, or ...