Okay so I have personally worked with Nikon's : - 17-35mm Pro F2.8 - 14-24mm Pro F2.8 Started first with the 17-35mm because its a tank, pro lens, and expectations were high. Was disappointed because especially at 17mm the lens was VERY soft overall and even slighty soft in the center.
Sharp; good colors; moderate/low vignetting; superlight for a ultra wide angle; Less that half of my "ex"- 17-35mm
Plastic yet durable feel