12–28mm · f/4
The Tokina AT-X 12-28mm f/4 Pro DX offers extraordinary optical performance, with optics at least as good as Nikon or Canon equivalents and better build quality. It has a versatile 12-28mm range (18-42mm equivalent) and constant f/4 aperture, but is large and heavy at 530g. Weaknesses include lack of weather sealing and a focusing ring that could be stiffer. It suits landscape, architecture, and general-purpose shooters wanting a tough, affordable ultrawide zoom.