In this lens you get everything you should expect from such an instrument– a shapely, lightweight device with a very good aperture fastness that is sharp across the frame up from the maximum relative aperture.
solid, weather-sealed mechanical construction,, moderate dimensions and low weight for offered parameters,, excellent image quality in the frame centre up from the maximum relative aperture,, good image quality on the edge of the frame,, slight lateral chromatic aberration,, properly corrected...
significant vignetting,, very high distortion for RAW files,, a bit too high longitudinal chromatic aberration.