Consensus on 24-70/2.8 II field curvature at infinity focus?

Benedict Slotte wrote:

I have tried a few copies of this lens, and settled on the one that was best among them. In spite of this, I do see significant field curvature in landscape shots (read: focused close to infinity) even at f/8, meaning that not even at f/8 will it be possible to have decent sharpness from one edge to the other.

And that's a pity, because I think at least one review said it was better than version I in this respect. I'm not sure what focusing distance they were referring to there, though.

Question to all owners of this lens: what are your own copies like when focused at something distant? I'm starting to think that this lens is just not designed for use with landscapes at all, but rather optimized for shooting at closer distances.

My lens has field curvature, with soft edges as a result focused at infinity.

And the “cure” is to focus beyond the infinity mark. For a start, focus using live view, aperture set at 8, place the focus point in one of the far edges, stop down and manual focus until the edge is sharp. You will by trial and error find the “magic focus point”  that will bring both the center and edge/corners pin sharp.

By doing this, you will learn where to set the focus manually. F5.6 on my lens is also sufficient to have an overall sharp image center/edge/corner, but then the point of focus must be dead on.

I am now able to set the focus manually without using live view, I know point of focus. Be aware: You must repeat the procedure for each focal length.

Hope this is understandable. Using this method brings the 24-70II to be an outstanding landscape lens.