but it is measured here in hundreds rather than the thousands that some optics demand. Overall, the OM System M.Zuiko 40-150mm f/4 PRO lens can be 'Highly Recommended'.

At 40mm, central sharpness is excellent from f/4 to f/8, very good at f/11, good at f/16 and fair at f/22. The edges are excellent from f/4 to f/8, very good at f/11, good at f/16 and fair at f/22 ...