Overview

The Chinon Auto MC 28mm f/2.8 is a compact, well-built manual focus lens with smooth handling. Optically, it offers very good central sharpness from f/2.8 to f/11, but edges are soft at f/2.8 and only fair until f/8. Chromatic aberration is well controlled centrally but high at edges; barrel distortion is moderate (-1.72%). Bokeh is attractive, and flare control is impressive. Vignetting is notable at f/2.8 (-2.4 stops). It suits vintage lens enthusiasts and those seeking a low-cost, characterful wide-angle for manual focus systems.