A welcome addition to Sigma's Art lens line-up, the AF 105mm f2.8 Macro DG DN Art Lens is designed for smooth, efficient and creative shooting. It has an advanced optic layout built up of 17 glass elements in 12 groups, including 1 SLD element. In addition, it has a 9-blade rounded aperture diaphragm which offers enhanced control of depth of field as well as providing beautiful smooth out-of-focus areas in your images or video. This lens is suited for both close-up macro work as well as for a wide range of other uses, such as stunning portraiture. The AF system features a Hyper Sonic Motor (HSM) which offers super-quiet, fast and accurate autofocus which is complement by an on-barrel focus limiter switch which will offer even faster AF performance when the time calls for it. As with all Sigma lenses, a high-quality and versatile build is guaranteed. The lens features various advanced functions including an aperture ring with de-click and lock functions, a customisable AFL button and ve