Lens Lab
    KO-120М 120 mm f/ 1.8
    KO-120М 120 mm f/ 1.8

    KO-120М 120 mm f/ 1.8

    120mm · f/1.8

    Overview

    The KO-120М 120 mm f/1.8 is a fast Petzval projector lens with simple construction, using two cemented doublets in metal tubes. It offers good center sharpness but suffers from strong field curvature and low contrast, requiring RAW processing. Bokeh has a swirling tendency. Build is robust but lacks focusing mechanism, demanding DIY adaptation. It suits portrait photographers seeking a vintage look and willing to handle optical quirks.