Lens Lab
    Sigma 17-70mm F2.8-4 DC Macro OS HSM
    Sigma 17-70mm F2.8-4 DC Macro OS HSM

    Sigma 17-70mm F2.8-4 DC Macro OS HSM

    17–70mm · f/2.8–4

    Overview

    The Sigma 17-70mm f/2.8-4 DC Macro OS HSM is a versatile APS-C zoom with a useful 25.5-105mm equivalent range and macro capability (1:2.7). Optical quality is mixed: sharpness is average at wide apertures but improves to very good between f/4 and f/10. Build is solid, with HSM autofocus and optical stabilization (Photoreview). It suits budget-conscious photographers seeking a fast, all-in-one lens for travel and general use, though it doesn't match premium primes.