Lens Lab
    Chinon 55 mm f/ 1.2 Auto (Tomioka)
    Chinon 55 mm f/ 1.2 Auto (Tomioka)

    Chinon 55 mm f/ 1.2 Auto (Tomioka)

    55mm · f/1.2

    Overview

    The Chinon 55mm f/1.2 Auto (Tomioka) is a rare, collectible M42-mount lens from 1970-1974, known as the fastest f/1.2 for that mount. Optically, it delivers a distinctive, creamy bokeh with heavy corner softness and a unique rear element shape, but at full aperture it is 'radial and tangential blurred and soft' in the field. Build quality is high, though later Cosina variants are considered inferior. It suits photographers seeking a characterful, vintage look for portraits or low-light work, but not those needing sharpness across the frame.