The 58mm lens features an aperture range from f/1.4 to f/16 and a rounded 9-blade diaphragm for producing pleasing out-of-focus elements, or bokeh. It also features a Silent Wave Motor for quick, near-silent autofocusing and Manual/Auto mode for fast switching between auto and manual focus. Additionally, this lens has a 1.9' minimum focusing distance and a 72mm filter thread. It uses Nikon's F mount for compatibility across Nikon's entire range of FX and DX-format DSLR cameras. Also, when used with DX-format cameras it provides a 35mm equivalent focal length of 87mm, ideal for portraits. Fast f/1.4 maximum aperture allows for shallow depth of field and excellent low-light performance The 58mm focal length offers a blend between a standard lens and a medium telephoto, offering a natural perspective with a slight exaggeration of depth of field Optical design includes 9 elements in 6 groups, including two aspherical lens elements which assist in the correction of distortion and coma flaring The Silent Wave Motor provides fast and quiet autofocus the M/A mode permits fast switching between autofocus to manual operation Nano Crystal Coating helps to eliminate internal lens element reflections Super Integrated Coating delivers accurate colors to your camera by minimizing flaring and ghosting