Sigma 150mm f/2.8 EX DG OS APO HSM Macro Lens for Nikon

The Sigma 150mm f/2.8 EX DG OS HSM APO Macro Lens is a super compact and lightweight large aperture telephoto lens, with life-size (1:1) macro capability. To maintain high optical performance from infinity to close-up 1:1 macro photos without accessories, this 150mm lens incorporates a "Floating Internal Focusing" (FIF) system. As a result, the lens also features a non-rotating front lens group which makes it easier to work with polarizing filters. The HSM feature provides ultra quiet high-speed autofocusing as well as full-time manual focus override. Optical image stabilization (OS) allows you to use shutter speeds 4 stops slower than would be possible without OS.