I have these two flash units and want the 580EX II to be on my camera and wirelessly trigger the 420EX on a light stand a few feet away. I have read Kelby's book on wireless flash firing and read the manuals but seem to be brain dead here and can not get it to work.
I set the 580 up as the master, channel 1 and set the 420 as slave channel 1 but the 520 will not trigger the 420. Can anyone help me out with this?
Scorpiojo
