Comments about Sigma 8-16mm F4.5-5.6 DC HSM For Nikon:
As most reviews point out, this is a pretty amazing lens. Having used the 10-20 3.5-5.6 extensively, I can say, this lens is sharper especially into the corners than the older design. And very sharp in the center: hard to believe actually.You have to accept the fall off and the correctable distortion as part of the package in a lens that "see" this much of the world all at once, both short comings easily corrected in post, with spectacular images resulting. I long ago stopped "worrying" about Sigma fit and finish. This lens feels at least as well assembled as the 10-20. The exposed front element does require some extra care, but is less of an issue than I thought it might be, and one I have been willing to accept just to get that crazy 8mm view.
George's Monument
Comments about Sigma 8-16mm F4.5-5.6 DC HSM For Nikon:
This lens is great and extremely wide. The only thing that I don't like about the lens is the lens does move when zooming, unlike the 70-200mm. And I wish the f4.5 was lower. I am noticing some flaring too. Other than that, I love it.