Lens Construction 14 elements in 12 groups, including 2 AA (advanced aspherical) elements and three ED (Extra-low Dispersion) glass elements; Nano AR Coating; Fluorine front-element coating.

Sharpness is highly impressive. The centre is excellent from f/1.8 to f/2, outstanding from f/2.8 to f/8 and excellent at f/11 and f/16. The edges are excellent from f/1.8 to f/4, outstanding at f ...