The f / 1.8 aperture alone is a selling point. The objective is above all an amateur target due to its 7 slats instead of 9 and its lack of depth of field indicator, however the focal gives 50 mm, which is perfect for portraiture, among others heard. The SWM motor also allows, in contrast to 50 f / 1.8, an update internally and quietly. This goal almost never leaves the bag of my D300!
