Four of Sony's original XD (Extreme Dynamic) Linear Motors, two for each of the lens's focus groups, deliver high thrust e!ciency that boosts AF speed by up to 4x compared to the previous model for fast, precise continuous autofocus and tracking for stills and movies. AF tracking while zooming is improved by approx. 30% which greatly increase chances of getting the shot even with subjects moving rapidly towards the lens.
Professional movie capability
Designed with movie magic in mind and the latest lens technology to reduce focus breathing, focus shift when zooming and axis shift when zooming. The XD Linear Motors and a new aperture drive unit contribute to quiet operation and independent control rings for focus, zoom and iris, with a click on/off switch for the aperture ring, make this lens ideal for movie shooting. Sony's Linear Response MF feature ensures responsive and repeatable direct manual focus control.
The lightest in its class
This lens offers outstanding optical quality and autofocus in the world's lightest F2.8 70-200mm zoom. XD Linear Motors and magnesium alloy barrel components result in an overall weight of just 2.3 lb. (1045 grams)
Professional control and reliability
Flexible focus control is provided by features such as Full-time DMF (Direct Manual Focus), Linear Response MF, and a focus-range limiter. An aperture ring with switchable clicks and an iris lock provides extra exposure control. MODE 1, 2, and 3 optical image stabilization ensure sharp images in different shooting conditions and a dust and moisture resistant design plus fluorine-coated front element maximize reliability in tough environments.