Lens Lab
    Sigma 21-35 mm f/ 3.5-4.2
    Sigma 21-35 mm f/ 3.5-4.2

    Sigma 21-35 mm f/ 3.5-4.2

    21–35mm · f/3.5–4.2

    Overview

    The Sigma 21-35mm f/3.5-4.2 is a vintage ultra-wide zoom with a push-pull zoom mechanism and variable aperture. Optically, it suffers from pronounced distortion at 21mm, showing a wave pattern that can give a slight fisheye look, while at 35mm distortion is minimal. Build quality is all-metal and glass, weighing 480g, with a 77mm filter thread and a built-in floral hood. It may require adjustment to achieve infinity focus. This lens suits film or low-resolution digital shooters seeking a compact ultra-wide zoom for landscapes, accepting its optical quirks.