Embarrrased myself the other day asking a question when I was confused between optical slave operation and Canon Master/Slave.....
Now after doing some reading I want to proceed with an equipment purchase.... So now I ask the Flash Gods (you guys) if what I am attempting is a good idea, or another stupid noob attempt at flash configurations...
I have a 58EXII (main light) and a 550EX (want to use as fill).... I have two PW Minis (Flex and TTL).... I could buy another Flex for the 550EX, but dont want to roll out another $230 that might not be necessary.
My Idea:
Use the 580EXII as fill, connect with an ETTL synch cord from FlashZebra ($43). Since the fill flash unit is only 4-5 feet from camera I doubt if the cord will be a problem. I will set the 580EXII as Master, and trigger the 550EX as ETTL slave. When I am outdoors and carrying one flash I can always revert back to the PW's.... Will that setup work properly, still convey the ETTL signals to master and slave? Is there a better way, or is this a completely stupid setup?? I have a 5D MKII,a nd will be using umbrella shoot-throughs on both speedlights.
Any help you guys can provide would be appreciated, and apologize for my earlier stupidity with the generic optical slave confusion!



