While 'we' are troubleshooting the 430, can someone simply walk through how to use it as AF assist on a 7D. I've heard about it but never took the time to read how to do it. Will it send out a weak flash output or simply an invisible IR pulse? I'd like to improve my autofocus capture rate shooting indoor sports w/o the flash going off. Thanks in advance.
Just the AF assist lamp projecting a grid, although its visible red, not invisible IR. Don't have my 7D with me, but IIRC it's in 1st shooting menu > flash control > external flash C.Fn settings, there's one for AF assist only.