The lens is sharp and has a beautiful bokeh, focus was sufficiently fast and korrekt.Leider it produced on my D300S even at absolute diffuse light at the edges, such as the muzzle of my dog, violent purple chromatic aberrations. And that despite the automatic correction in jpg the D300S. In Photoshop, the woman was not more remedy. A pity. Today I talked with a professional photographer on a Nikon event of confirmed to me that these lenses are corrected just for film.