Lens Lab
    Sigma AF 14 mm f/ 2.8 EX HSM RF Aspherical
    Sigma AF 14 mm f/ 2.8 EX HSM RF Aspherical

    Sigma AF 14 mm f/ 2.8 EX HSM RF Aspherical

    14mm · f/2.8

    Overview

    The Sigma AF 14mm f/2.8 EX HSM RF Aspherical is a rectilinear ultra-wide lens offering a 114° field of view. Optically, it delivers excellent sharpness from f/5.6 onward, good contrast, and well-corrected barrel distortion. Weaknesses include a convex front element prone to flare if not kept clean and a cumbersome gelatin filter system. Build quality is solid, with fast, quiet HSM autofocus and full-time manual override. It suits photographers needing an affordable, fast ultra-wide for low-light or architectural work, though careful shading is advised.