negligible longitudinal chromatic aberration ; good control of the lateral chromatic aberration ; lack of problems with spherical aberration ; moderate distortion ; slight vignetting on APS-C ; very good colour rendition and a sensible overall...

not especially solid plastic casing and mount ; low image resolution near the maximum relative aperture ; weak performance of the manual focus ring which doesn’t feature any scale ; loud autofocus ; huge astigmatism ; very pronounced vignetting on full...