Lens Lab
    Sigma DG A 12-24 mm f/ 4 HSM
    Sigma DG A 12-24 mm f/ 4 HSM

    Sigma DG A 12-24 mm f/ 4 HSM

    12–24mm · f/4

    Overview

    The Sigma 12-24mm f/4 DG HSM Art is an ultra-wide zoom for full-frame, offering extreme 122° field of view at 12mm. Optically, it delivers good image quality with minimal distortion, ghosting, and flare. Weaknesses include external zooming and lack of full weather sealing. Build is robust but heavy at 1150g. It suits landscape and architecture photographers needing extreme wide angles, though the fixed hood prevents screw-in filters.