I have a 580exii flash and was wondering if the older 420ez or other models will work as a wireless slave with ettl. (using the 580 as a master) The older ones I can get of Ebay alot cheaper than new. Or should I not waist my $$ . I am just doing some family shots. Please give me some advise. Thanks Stephen
I had 3 550EX, now down to 2. It's performance is very close to 580. I could not see any reason to trade it for 580. I especially love it for 8 different selectable levels of manual power, that I use in hummingbird photography. You should consider it. It is usable as master or slave, and is less expensive than 580.
