9 out of 10 points and recommendedsharp, contrast, size, weight, look, pricenot weather sealed, distortion at 18mm, not as wide as some alternatives...but for that price all cons are pretty acceptable
I was previously using Tamron 17-35 attached to my D700. After about a year of Tamron experience and comparing nowadays to this lens...its a nonsense to compare it.reviewed May 17th, 2013 (purchased for $750)
The vignetting is well controlled, the sharpness and contrast are outstanding. Thinking of an image stabilization, its nice addition but not that needed for the lens that wide and especially when you are used to capture landscapes using tripod. AF operation is faultless and accurate.
When comparing to Nikon 16-35 owned by my friend, its hard to find any difference in IQ, but it is lighter, smaller and needless to say it is fairly cheaper.