SIGMA 70-200 mm F2.8 DG DN OS Sports for Sony E-Mount

The highly-anticipated SIGMA 70-200 mm F2.8 DG DN OS Sports is a reliable and lightweight DG DN F2.8 large-aperture telephoto zoom lens designed exclusively for full-frame mirrorless camera systems, and is available for the Sony E-Mount. Combining high-speed AF, remarkably effective OS, exceptional mechanical reliability, and superior optical performance, this high-performance lens is purpose-built to meet the rigorous demands of professional-level photographers. Featuring high performance and reliability, a lightweight design, and a full range of features, the SIGMA 70-200mm F2.8 DG DN OS Sports is the smart choice for photographers and videographers in a wide range of creative styles and genres including nature, wildlife, photojournalism, action sports, wedding and portraits.
Features
Dust and splash-proof construction, high-performance optical stabilizer (OS) functionality, and an inner zoom mechanism that does not change barrel length when recomposing, are all features designed for the most demanding photographic conditions. It is also the first SIGMA DN zoom lens to be equipped with a click-and-declick-type aperture ring. Streamlined optical design and a multi-material structure that optimally arranges magnesium and TSC have resulted in a lightweight lens body. A new compact tripod collar and foot also help minimize weight, as does a CFRP (carbon fiber-reinforced plastic) lens hood. Compared to the SIGMA 70-200mm F2.8 DG OS HSM Sports for DSLR cameras (1,805 g for SA mount), the SIGMA 70-200mm F2.8 DG DN OS Sports is significantly lighter.
Focus
Featuring Dual HLA-driven floating focus for fast, accurate AF, the focus lens is driven using a high-thrust HLA (High-response Linear Actuator) as the focus actuator and a floating focus is used to achieve high-speed AF drive. The floating configuration of this lens, in which the two focus groups are driven in opposite directions, reduces the amount of movement of each focus group to about half that of a single-group focus system, achieving extremely fast AF that is highly responsive. The latest OS2 stabilization algorithm achieves an image stabilization performance of 7.5 stops at the Wide end and 5.5 stops at the Tele end. The SIGMA 70-200mm F2.8 DG DN OS Sports has very minimal focus breathing on both the wide and tele ends, making it a powerful lens for video applications. The minimal change in center of gravity enables stable shooting in all situations, including handheld, on a tripod, and with a gimbal. During zooming, five groups are moved to suppress aberration fluctuation, achieving high optical performance throughout the zoom range.