The tamron sp 70 200mm f28 di vc usd zoom lens for sony is a high speed standard to telephoto zoom lens with a fast f28 maximum aperture throughout the zoom range designed for full size slr and dslr cameras it offers superior image quality accentuated by advanced vibration compensation image stabilization and an ultrasonic silent drive motor for quiet smooth and precise autofocus a new optical design for this popular focal length zoom delivers high contrast and high resolution througho