New Speed and Resolution In An F1.2 LensThis 50-mm F1.2 G Master prime lens is a creator's dream, with an F1.2 maximum aperture that not only allows shooting in a wider range of lighting conditions, but also provides an extraordinary combination of high resolution, luscious G Master bokeh, and blazing autofocus. It is also remarkably compact and lightweight-for new creative freedom.g Master Resolution Without CompromiseThe compact, lightweight Fe 50 mm F1.2 Gm is an ideal choice for dedicated creators. Xa (extreme aspherical) elements and other advanced technologies combine to achieve extraordinary resolution and contrast from the image center right out to the edges. Sony Nano Ar Coating Ii subdues flare and ghosting, while a floating focus mechanism ensures optimum sharpness at any focusing distance.