lerico

I found that it's hard to get consistent results with Canon's ETTL group light system. You have to be really careful with the in-camera metering system... you either need to experiment by dialing down exposure compensation and turn up flash compensation... or metre the scene, hold it constant by M mode and do pre-flash with spot meter for every single photo.

That's why I finally ditched the ETTL system and got back to all manual flash with regular pocket wizards. I am now using 3 PWs with 2 580EXII and 2 Vivitar 285hv.