Hi everyone! I found my old flash which is a Sunpak 522 / Sunpak 3600 which still works. Will this work as a third light for hairlight or background light if I just buy one of those optical sensors or do I need to buy a third speedlight?
If so, what optical slave should I be looking at? I already have two 580 EXs version I and II.
Thanks in advance.
Voltaire
P.S. I already tried to see if the Sunpak will see any of the 580 EX when I fire them but it doesn't seem to see it.
