Designed exclusively for Sony full-frame mirrorless cameras, the Sigma 70-200mm F2.8 DG DN OS Sports lens is perfect for sport and wildlife photography. Dual HLA (High-response Linear Actuator) motors deliver rapid, accurate and silent focusing that can handle even the most challenging of fast-action subjects. The built-in Optical Stabiliser function with OS2 algorithm provides up to 7.5 stops of effective stabilisation, allowing for shake-free hand-held images in low-light settings. As well as being optically outstanding at all focal lengths and apertures, this compact lens includes a range of professional features, including a de-clickable aperture ring, a built-in Arca Swiss foot, a Focus Limiter and weather sealing for superior protection in tough conditions. - Lens construction: 20 elements in 15 groups - OS (Optical Stabilizer) function - Inner focus system - Compatible with high-speed autofocus - High-response Linear Actuator - Compatible with Lens Aberration Correction - Supports DMF and AF+MF - Compatible with AF assist - Nano Porous Coating - Super multi-layer coating - Water and oil repellent coating (front element) - Dust and splash resistant structure - Tripod socket (detachable lens foot type) - 11-blade rounded diaphragm - High-precision, durable brass bayonet mount Fast and accurate AF The Sigma 70-200mm F2.8 DG DN OS Sports has been developed with both photography enthusiasts and professionals in mind. By utilising a combination of two dual HLA (High-response Linear Actuator) motors and Sigmas OS2 optical stabilisation algorithm, the lens is able to deliver fast, accurate and near-silent autofocus even for the most challenging fast-action subjects. Professional performance throughout the zoom range Designed using ultra-high-performance low-dispersion glass, which includes six FLD and two SLD elements, the SIGMA 70-200mm F2.8 DG DN OS Sports delivers outstanding image quality throughout the entire zoom range, even wide open at F2.8. Three aspherical glass elements further improve optical performance by reducing spherical aberration. Distortion and vignetting are extremely minimal and chromatic aberration is very well controlled even in high contrast areas. Shoot handheld with optical image stabilisation Shooting handheld in low light situations has never been easier, thanks to the use of the exclusive OS2 optical stabilisation algorithm, which provides an incredible 7.5-stop advantage at 70mm and a 5.5 stop-advantage at 200mm. The lens also features two OS modes. Mode 1 can be used for all types of photography. Mode 2 employs SIGMAs Intelligent OS algorithm for smoother panning shots. Regardless of the lenss orientation, the stabilisation is effective for both vertical and diagonal movement and doesnt interfere with the panning motion. Minimised focus breathing, flare and ghosting The lens has been designed to suppress focus breathing, meaning that the change in angle-of-view when focusing is minimised. This ensures a natural-looking focus shift when recording video. Highly backlit shooting environments are no trouble thanks to the use of advanced technology simulations and high-quality glass elements that keep flare and ghosting to a minimum. Weather resistant design Shoot in challenging weather conditions thanks to the lenss weather-resistant design, which utilises rubber seals to keep out dust and moisture. The lens streamlined optical and mechanical design uses high-quality materials specially designed to resist changes in temperature and improve durability. Lightweight and durable By using a streamlined internal design, the lens is significantly smaller and lighter than the existing SIGMA 70- 200mm F2.8 DG OS HSM Sports for DSLRs. The lens and hood are constructed using a multi-material structure consisting of CFRP (carbon fibre reinforced plastic) and TSC (Thermally Stable Composite) materials, resulting in a total weight of only 1,345g. Tactile aperture ring Take control of the depth-of-field using the built-in aperture control ring, the first to be featured on a SIGMA Sports lens. Set the ring to F2.8 to create beautiful separation between the subject and background with pleasing bokeh. The ring can be de-clicked, which is useful for film-makers, and locked so that it cannot accidentally moved. Newly developed tripod socket A reworked Arca-Swiss compatible magnesium alloy tripod socket is included to keep the lens compact and lightweight. The tripod socket features a standard 1/4 screw and can be detached when required. In the box: Sigma AF 70-200mm F2.8 DG DN OS Sports Lens Petal Type Hood (LH860-01) Front Cap LCF-77 III Rear Cap LCR II | Sigma Unisex AF 70-200mm F2.8 DG DN OS Sports Lens - Sony E-Mount in Black | Size: 200mm