Hi all,


A month ago I got my first L lens and I'm sad to say I'm a bit disapointed. I've had the 28-135mm kit lens on my 50D and was looking for some sharper images. After a long decision process between the 24-70 and 24-105 I choose the 24-70 with in the back of my mind three weddings I'm going for three friends this summer. I was quite pleased with the shallow DoF, bright viewfinder, and quick/accurate focusing, but I found that the 24-70 suffers from both red and green CA much more so than my 28-135. Anyone else with this experience? I understood that CA was well controlled with this lens so I expected the 24-70 to do much better! In particular, focussing on my B/W cat's whiskers shows the CA most severely. I'm debating exchanging the lens for another copy. Any thoughts?