The FE 50mmF1.2GM uses Sony's latest techniques including advanced optical simulation and manufacturing technology to deliver awe-inspiring G Master resolution and bokeh with a wide F1.2 aperture in a surprisingly compact and lightweight design. Three XA (extreme aspherical) elements and Nano AR coating II contribute to high-contrast, high-resolution results with corner-to-corner sharpness and dramatically reduced chromatic and spherical aberration, flare and ghosting. A floating focus mechanism ensures that full resolution is maintained throughout the image area from infinity to close focus. Despite its compact size and lightweight, the FE 50mm F1.2 GM delivers incredible resolution and contrast from the image center right out to the corners.