As usual, overview of the market, full of visions demo videos etc ... then my choice is Yongnuo 622c ..Achat On Amazon (my first) ... hassle to understand the buying process short I finally get there .... and then haphazardly mail and small reception happiness as planned, on time battery Perfect packaging, new appliance, nickel. I put the batteries, I test does work well and works very well !! here control my flash cobra TTTL2 my Elinchrom studio flash !!! ,, high speed, strobe !! etc etc and is far more here in the dark IR for sharp pictures (there is a front sensor that illuminates red segment by small and collimators make the map above! ... here it's cool) so I'll buy two! and more ... Really very satisfied
