I am wondering if someone could give me a better understanding of external flashes (master vs. slave, TTL dedication, metering...)
I am working with Canon, so anything specific to this, would be great. I am interested in being able to use an external flash to bounce while attached to the camera body and would also like to be able to use the flash externally/wireless while detached from the camera body. Additionally, I would like to be able to add another flash in the future to use simultaneously (I guess this would be a 'slave' flash?).
I am looking at the "580 EX II Speedlite"... would this accomplish what I am looking for?
http://photography-on-the.net/forum/showthread.php?t=138907
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March 03, 2010

