This compact, lightweight telephoto zoom lens is ideal for full-frame E-mount bodies, delivering superb G Lens image quality throughout the zoom range. AA (advanced aspherical) elements, Super ED and ED glass elements, the Sony Nano AR Coating, and a 9-blade circular aperture add up to refined rendering with smooth bokeh where desired. Maximum aperture is a constant F4, and the physical length of the lens does not change when zooming or focusing. Dual linear motors ensure fast, precise focusing. Focus hold, range limiter and other controls are located on the barrel for easy access. Optical SteadyShot image stabilization is built in.