The 24-70mm lens is an essential lens for almost every professional photographer, and SIGMA Ambassador Martina Abreu is no different. From portrait sessions to nature hikes, events to sunsets, a 24-70 can handle pretty much everything. The SIGMA 24-70mm F2.8 DG DN II | Art – an upgraded lens for full-frame mirrorless – brings this capability to a smaller, sharper, faster-focusing package.