So I've decided that's going to be my next big purchase. The two that I was looking at were the 550 ex and the 420 ex. Is the difference between the two that big? Also, while I was looking at B&H, they also have a 550 ez, is that much different from the ex?
Still have lots of reading to do before I pick one, but thought I'd get some imput first.
thanks
adina