The Sony A 70-200mm f/2.8 G SSM II is a fast aperture telephoto lens for Sony A-mount cameras and update to the original Sony 70-200mm f/2.8G APO SSM. Key features include:

Fast-Aperture Telephoto Zoom. The full-frame compatible 70-200mm f/2.8 is perfect for fast-action and low-light shooting, making it a go-to lens for sports photographers.

SSM Motor with Improved Autofocus Performance. The improved Super Sonic wave Motor provides an estimated 4x autofocus speed increase over its predecessor. This also translates to faster and more accurate tracking autofocus performance.

G-Series Optics. The 16-group/19-element optical formula features four ED elements that minimize chromatic aberrations, while the internal focusing design allows for faster performance.

Three Focus Hold Buttons. With any A-mount camera, pressing one of the buttons holds your focus point. However, on advanced models like the Sony Alpha a99 II, you can program these buttons to perform additional functions.