Sony FE 28-70mm f/2 GM Lens (Sony E-Mount) with Weatherproof Hard Case BundleSony FE 28 70mm f 2 GM Lens (Sony E Mount) The Sony FE 28 70mm f 2 GM Lens (E Mount) is the first G Master standard zoom lens with a constant f 2 aperture, delivering prime like sharpness and beautiful bokeh in a compact, lightweight design. Ideal for portraits, events, and filmmaking, it features three XA elements for high corner to corner resolution, an 11 blade circular aperture for smooth bokeh, and floating focus for close up shooting at 0. 38m.