Overview

The Cosinon 55mm f/1.4 is a manual-focus lens praised for its sharpness and pleasant bokeh (Lloydy). It is sharper wide open than the similar Tomioka version but more prone to flare, requiring a hood (Snowcat). Build quality is typical of Cosinon, with a focus ring finish that differs from rebadged versions like Revuenon (memetph). The lens suffers from ghosting on Sony A7 (memetph). It suits portrait, flower, and city photography (Snowcat).