Hello,


I just bought my 580EX II not long ago. I mounted it to my 50D, with 18-200mm, f3.5-5.6 kit lens. I found that the auto zoom function is not available when I set it to bounced position. I have no choice but to set flash exposure compensation manually, and sometimes need few attempts to get it right.

Is there a function for 580EX II to determine the strength of flash required based on the distance to objects when it is in bounced position, like the auto zoom function when the flash is put to forward position?


If no, then what is the best way to set flash exposure compensation / the strength of flash when in bounced position? How do I use bounced flash for object far away?