Central sharpness is excellent all through the aperture range, rising into the outstanding category between f/2.8 and f/5.6. The edges start off as good, showing the effect of inbuilt spherical ...

Sharpness is very impressive, centrally being excellent at all apertures. The edges are not far behind, being very good at f/2.8 and f/4, excellent from f/5.6 to f/11 and very good at f/16. The ...