Alrighty, i have upgraded from a 380ex to a 580ex (and very nice too)
Question is, seeing as the 380 is next to worthless secondhand, would it be useable if the 580 were attached to hotshoe either directly or via off-shoe cable and the 380ex connected with a PC cord cable & adapter as a tethered second flash? Presume manual flash settings maybe needed on the 580 (which I'm sure I could figure out eventually)
is this a silly idea?


