Sony FE 28–70mm f/2 GM (Sony E-Mount) Why You’ll Love It Constant F2 maximum aperture across the zoom range for low-light and depth-of-field control. Prime-like sharpness with three XA (extreme aspherical) elements, plus ED and Super ED glass to tame color fringing. Four XD linear motors for fast, precise, quiet autofocus--great for action, events, and video.
