Small, handy, solid, with good build quality and outstanding sharpness in the frame centre – for many people these features would be a recommendation good enough to purchase the lens. Providing that its price is right.
compact and solid casing of high quality,, good image quality in the frame centre already from the maximum relative aperture,, slight longitudinal chromatic aberration,, very low lateral chromatic aberration,, lack of serious spherical aberration issues,, accurate, fast and noiseless autofocus.
unsatisfactory image quality on the edge of full frame,, huge vignetting visible even on the smaller APS-C sensor,, a bit too high level of coma.