10 out of 10 points and recommendedSharp, no distorsion, excellent build qualityPrice and size
It is simply the best super wide I ever used.reviewed September 5th, 2012 (purchased for $2,700)
It is not much to say about it - else than amazing!
I thought the Nikkor 14-14mm was so close to perfect as it was, but after tried this one, it is far behind.
The only thing that could be better is the price. It is to expensive for most photographers not getting paid for their photos.
8 out of 10 points and recommendedFocal Length, price, size, center sharpnessBorder sharpness
I have tested this lens with my Nikon D800E. The center sharpness is good for practical use. The border and corners are not as goods as expected. There is also some CA and vignetting wide open, but this is relatively easy to correct from Lightroom.reviewed June 8th, 2012 (purchased for $999)
There is almost no distorsion.
The focus is fast and accurate, but not as silent as the Nikkors. To switch from AF and MF is easy to operate by push/pull the focus ring. I found this more user friendly than the traditional switch at the side of the lens barrel.