Quote:
Originally Posted by Mark McCall
If the 580EX worked as I always felt it should, there wouldn't have been a need for a "II" version.
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Mark, this comment makes you look anti-Canon, even if you say that you are not.
The new Mark II provides better build, sealing, and is more impervious to inclement weather. It has the same performance as the Mark I. It's reason for life is about a better build and not better flash performance. The Mark II recycles a bit faster, but those differences aside, the flash performance is the same.
As for the Mark I and consistency, I've found it to be very consistent over hundreds of shots at weddings. Not saying that it is perfect however. Like all tools it too has it's strangeness, but once understood it can provide consistent performance all day long.
Canon certainly makes their share of cr@p, their horrible non-L zooms, and even their 50L, which has not lived up to it's hype, but to talk Canon down so much reflects too much subjectivity, I think.
As for the Metz, I promised myself to look into their flashes, primarily for what you have praised it for, and I've often heard other pros say as much about Metz too.