Capture One Pro 8 also provides lens corrections for the Nikon 16-35.
In my highly biased opinion it is also a much better workflow option overall than dX0 and provides better underlying quality for color, tonality, and overall look.
Hi Doug,
I agree, part of the issue may be lens distortion related, but part of the issue is also just coming from the 'extreme' angle of view and its projection on a flat (sensor) plane. This combination of wide angle and flat perspective (rectilinear) projection tends to stretch the corners/edges when we view the image from too far away.
Slobodan is correct that DxO offers a specific (anamorphosis) correction for that, but that tends to introduce the bending of straight line features. A specific panoramic stitching program allows to use a combination of reprojection (by altering the viewing direction and or camera position) and remapping to a different projection (I used PTGUI's 'Vedutismo' projection which can be useful for architecture).
You owe it to yourself to try the free trial on this image and report back the results .
Trying Capture One Pro is always a good suggestion, although in this particular case it can only produce a very good Raw conversion, but not a full compensation for this physical+psychological distortion effect. The psychological part is due to a too large viewing distance.
It would be interesting if a future version of Capture One allowed to compensate for such impossible distortions like a panostitcher can do on a single image. It would also help photographers who e.g. need to shoot large groups in confined spaces, but that would also require improving its resampling algorithms (which currently seem to be something like bicubic).
Cheers,
Bart