pulseimages said:
My 24-105 L has to be the most disappointing L lens I have ever owned. It's only good from 24-70 from 70-105mm it's garbage. Even after sending it and the camera back to Canon to be calibrated it's still soft.
From the reviews of that lens it was well known to me that I would be disappointed by that lens: Spoiled by 2.8 24mm (old version), 2.8 40 and 2.8 100 Macro non-IS I need (1) at least similar overall IQ and (2) the 100mm which is a very useful focal length for me -- 24-70 doesn't fit my view of a universal zoom lens.
Maybe Canon has seen the not so good optical properties of the 24-105 in the tele range as problem, especially with high res bodies. And what I hear from the 4.0 16-35 and 100-400 mk ii shows me that there has been some substantial progress in zoom technology (or quality control or both).