well not really sure bout that but someone should do a test between those two high end flashes. but for budget wise, the nissin counter part really bang for the bucks![]()
Bang for the buck, yes. But to say Nissin 866 is better than SB900 is too much of a stretch.
Sure, 866 has a higher guide number. But consistency in result, refresh rates, auto FP and BL mode, SB900 wins hands down.