Hi all, Quick question. I think (and without setting up some test charts I'm not 100% sure) my 14-24 shows significant field curvature. I've attached a (shrunken size, since a 20MB shot of my garden is a bit awkward) image that shows what I believe is going on (yes, I need to cut the grass): with the image centre in focus on a wall, the areas nearer to me than the wall on either side of the garden are more in focus than anything in plane with the wall. In real shooting, I've seen subjects at my feet be in focus when the image centre is metres away, but distant objects at the frame edge have been out of focus - the focal plane appears to be bowl-shaped (though at least not wavy, like the 24-70). This image was at 14mm, if that makes a difference to correlating with others. Nikon have checked the lens and claim it's in spec (though I did have to explain that I meant field curvature and not distortion), so I just wanted to know whether others have had similar behaviour from this lens. Since there was a report around here of someone with an incorrect flange distance in their D800, I'm a little nervous that there's a strange interaction going on. Until I noticed the sharp close objects, I was convinced that the lens just wasn't as sharp as everyone claimed in the corners. Yes, the problem goes away on stopping down (presumably because the depth of field is extending) - though it's still there until about f/7, by which point I'm past the D800E diffraction limit. It won't be a problem for all shots, but if it's fixable, I'd sooner it be fixed. Nikon are asking if I'm happy with their service (and I'm happy that they don't charge if they didn't fix anything!) so it was about time I sought a second opinion. Thanks in advance.