An excellent prime lens for the price, to advise all users hesitant or unable to obtain the Nikkor 35mm f1.4. The opening difference is not very sensitive, satisfactory sharpness. Perfect for low-light situations, of course, and working fans without flash indoors. Lets play "without difficulty" with the effect of depth of field. Equivalent to a silver standard 50mm lens for Nikon digital sensors 1.5.