I have a question. I will say beforehand that my knowledge both intelectually and as bodily experience with flash and that world to be limited. I have read the postings on this thread, and I think I understand half of it:)
I have a 580 EX II and a 430 EX II. I reason I got the ST-E2 was for its ability to master the other two flashes, and that it would give me the possibility to set the white balance correctly when shooting portraits. The way (at least in my head) that I would get the best white balance was to set up the flashes first, then to use an expodisc or if I had forgotten to bring it, a white/grey paper next to the subjects face, and use the ST-E2 to fire it off, while I have the camera and lens next to them to get the most correct reading. Is this a good way to go?
Second. I keep reading here about using the ST-E2 without firing off the flashes.... What some of the postings here say is that it helps with focus assist.. Does it do anything that the AF does not do from the camera at its vantage point? I am a bit confused here. Ar you saying that the ST-E2 and the 580 EX II can help with additional focus readings. Or is this all wrong on my part, and that the focus you are talking about is: reading (focus) to get the right amount of light strenght?
As you can see, I am quite confused here. The use of flash is new to me, since I normally shoot without it. And while I am at it, do you have suggestions for good books to learn the art of lighting, both on an entry level (I have Scott Kelby books on it), and intermediate level books that I can read after the entry level?
Thank you in advance