Lens Lab
    Sigma MF 100-200 mm f/ 4.5 Zoom-Kappa
    Sigma MF 100-200 mm f/ 4.5 Zoom-Kappa

    Sigma MF 100-200 mm f/ 4.5 Zoom-Kappa

    100–200mm · f/4.5

    Overview

    The Sigma MF 100-200 mm f/4.5 Zoom-Kappa is a vintage telephoto zoom lens with all-metal build and smooth focusing. Optically, it is functional with no noticeable mold, but a bubble in the multi-coating was visible on one sample, though not affecting photos. Handling is hindered by a small zoom ring and a variable aperture that requires adjustment to unlock the full zoom range. It suits film photographers seeking a compact, all-metal telezoom from the 1970s-80s, but may be cumbersome for fast-paced shooting.