Fast, upgraded f/1.8, compact FX format prime lens. The picture angle with 35 millimeter (135) format is 47 degree and the maximum reproduction ratio is 0.15XFocal length 50 millimeter, minimum focus distance 1.48 feet (0.45 meter)Newly developed optical system with aspherical lens element, exclusive Nikon silent wave motor (SWM)M/a focus mode switch, filter thread 58 millimeter, autofocus: Yes. Dimensions (approx.) (from the camera lens mounting flange): Approximately 2.83 inches diameter x 2.01 inchesStyle:Lens OnlyNikon AF-S Nikkor 50mm f/1.8G Lens, Brand : Nikon