There have been comments on this site about the build quality of the HVL-F58. Well, as I said when I joined this forum recently I am seriously thinking of migrating from Canon to Sony. Well, get this. I was doing a corporate job this evening and my Canon flash, the 580EX, literally fell apart as I put it on the camera: the bottom half separated from the top half exposing the circuitry. And this was at the start of the gig, I hadn't even fired off one shot. So next time you guys complain about the F58, remember that maybe no one cam manufacturer makes their wares as tough as they once did. Oh, and this is my second Canon flash to go belly up. Sony here I come.