The Tamron 50-400mm F/4.5-6.3 Di III VC VXD (Model A067) is the unprecedented, next-level ultra-telephoto zoom lens for Sony E-mount full-frame mirrorless cameras. Featuring a stunning 8x zoom ratio, it provides a wide range of focal lengths that covers the standard 50mm and stretches all the way to 400mm ultra-telephoto to offer an unmatched level of versatility. With of its wide 50mm starting focal length, full-body shots of subjects like wildlife can be captured together with the surrounding background. The wider end of this unique mirrorless zoom lens is particularly useful for side-line sports, animals and other subjects that move closer as you are shooting, allowing you to continue photographing without the need to change lenses. Despite its high resolving power throughout the entire 8X zoom range and extraordinary reach, the 50-400mm is incredibly compact with a length of just 7.2" and a light weight of 40.7 oz. For superb results in a broad variety of situations, the 50-400mm is equipped with TAMRON’s VXD linear motor focus mechanism and proprietary VC image stabilization mechanism. These features combine with others to make it is possible to capture sharp images even when shooting wild birds and fast-moving sports action. Users can enjoy the world of half-macro photography with excellent close-up shooting capabilities. The MOD is a scant 9.8" at the 50mm end, and the maximum magnification ratio is 1:2. Users can customize certain functions and update the firmware via the Connector Port by using the dedicated TAMRON Lens UtilityTM. For this new zoom, TAMRON Lens Utility offers a new “Focus Limiter” function.