Great lens. To the previous author of the review: on the MTF charts it is indicated for an open aperture, on the covered aperture everything is in order with sharpness. On the D800E, it resolves perfectly. Different pros: constructive, optical quality, the front lens does not protrude like on most wide-angle lenses, compact size Some cons: since the lens is old, it does not have nanocrystalline coating, chromate