High quality lens intended for portrait shooting & designed especially for photographers seeking the best possible image parameters. The lens comprises of 9 lenses divided into 7 optical groups & provides internal focusing function. It should be also noted that one of the lenses is aspherical. Iris diaphragm allows one to produce aesthetic bokeh. All lenses were covered with multilayered, anti-reflective coatings, which add to the very high level of light transmission.