Boy do I feel stupid but I'm really stuck.
I just bought the 580EX and I allready have a 420EX.
Today I tried somethings but I'm really stupid or I'm missing something .
I have the 420EX on a white background and the 580ex on my 20D.
When I set the ratio to max left 1:8 I believe I have an almost blownout background and proper light on my subject.
When setting it to max right I believe 8:1 I have way to low light from both flashes.
What I wanted to do was the 420EX on full power and the 580EX on lower power so I tried the following.
Set the manual A on 1/1 and B on 1/128 both performed way to low.
Set the manual A on 1/128 and B on 1/1 both blew out the picture.
To get it almost the way I wanted I set FEC to +2 2/3 and ratio to the far left this gave good skin and an almost blowout back.
I must be missing something and the manual is VERY VERY poor in explaining ratio's, it tells it about 2 groups and 3 groups but even then the ratio's are not well explained.
Can someone please tell me what I'm doing wrong ?
I can work my studio setup but it would be nice if I also mastered this.
And again I'm probarbly missing something and I feel really stupid but I'm stuck so please help ??