Just FYI, you can see a full-resolution jpeg of the samples by clicking on: (点击此处查看大图) located directly below each image.Doesn't look very sharp in the corners (photo of the white house and the church). Or am I a pixel peeper now and does it look better than the 16-35 f/2.8 II?
-brought to my attention by Bryan over at TDP.
The white house is 17mm f/8. Hard to say where the focus point was, but corners look sharp to me, some distant details may be a soft because the focus point may be close to the lens.
The church looks good, 16mm f/8, again don't know where the focus is, but should have lots of DOF. The shot is not razor sharp everywhere, but not bad. It is a 10 second exposure, so there could be some camera movement, you can't know how careful they were, or whether they used a good tripod.
Unfortunately, the only thing you can do is wait for reviews from good reliable sources.