OUCH!!!! I personally think the awful "onion bokeh" is the deal-breaker on a lens that would be a bread-and-butter lens for portraiture and MANY other types of "people" work...
Canon EF 24-70mm f/2.8 USM L II - Full Format Review / Test Report - Analysis
The harsh OOF foreground bokeh is also not so good. What's weird is that like, a week ago, Rotanimod here on TPF did a post entitled, "
Sharpest zoom lens ever", which touted the new Canon Mark II's
outstanding resolution numbers, as tested across five samples, by LensRentals.com's Roger C.. And, in the test above, the Line Widths Per Picture Height figures in the center are OUTSTANDINGLY HIGH!!! It's odd...the testers here refer to the new Tamron 24-70mm VC lens, and Roger also tested the Canon MArk II's against the Tamron 24-70 VC, and the Canon beat out the Tamron 24-70. The Tamron 24-70 in Roger's tests WAS however, significantly better than the earlier MArk I Canon 24-70 zoom.
This lens seems to have no bokeh fringing (ie no longitudinal CA), which is good. HIGH central sharpness across the zoom range, an inexplicable nose-dive at 70mm, bad fall-off, no stabilizer, and pretty average edge performance at the extremes...I dunno...the Tamron VC seems to be like 90% of the lens for half the cost...once again...
Still, I'd want to see pictures from the lens. Lots of them. To see how it shoots in the real-world,and not "the lab".