Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Nikon

Sigma 17-70mm f/2.8-4 DC Macro OS HSM C (Nikon) review: update to popular standard zoom lens

Introduction With a classy looking outer finish, new optical construction of 16-elements in 14 groups including image stabilization and an ultrasonic type motor, and a $100 premium the Sigma 17-70mm f/2.8-4 DC Macro OS HSM C replaces the previous $399 17-70mm f/2.8-4 DC Macro HSM model. This review is based on the Nikon mount version, the evaluation of the Canon fit model can be found here. With a DxOmark score of 16 points on the 16 Mpix Nikon D7000, the new Sigma performs well for this type of lens. Sharpness is