Upload & Sell: Off
After yet another critical image from a recent wedding being ruined by our 580Ex2 flash unit deciding to switchfrom ETTL to ETL (without our input,) we have sent both flash units back to Canon for repair/investigation.
Has anyone else had this annoying problem where the flash shoots out 100% power for no reason, completely over exposing the shot? (Worse when the camera is in portrait orientation, where I guess there is more strain on the contact between the flash and the body?)
We have had the same intermittent problem with both flash units on 4 different Canon bodies, while an old 580Ex back-up unit still works fine, so it's not a contact or lose connection with the hot shoe area of our bodies.
We have also seen the various 'self-help' fixes and tutorials on the web, and after trying many of them and checking for lose contacts and lose screws etc, can say that everything is as tight as it should be.
I'm convinced that there is a fundamental design flaw with the new locking collar of the 580EX 2, as it never feels as securely connected to the camera as the older flashes with the wheel lock mechanism.
Any other similar experiences from people using the 580EX2 flash units much appreciated.
If canon send these units back with 'no fault found' we are tempted to ditch the much hated Canon flashes for good and move to a third party flash set up instead. Any recommendations on which 3rd party flashes work best with Canon bodies?