Lightweight, compact 50 mm F1.4 G Master prime Sony’s latest lens technology delivers extraordinary resolution and bokeh in a compact, lightweight lens. Extraordinary AF, smooth operability, and rugged reliability add the finishing touches to this innovative large-aperture standard prime lens. Breathtaking G Master quality right to the image edges Two high-precision XA (extreme aspherical) lens elements effectively correct distortion and most aberration types. This new optical design also uses an ED (extra-low dispersion) glass element to suppress chromatic aberration. Our original Nano AR Coating II on the lens surfaces greatly reduces internal reflections that can cause flare and ghosting. Innovative optics and an F1.4 aperture deliver magnificent bokeh Innovative optics and an F1.4 maximum aperture combine to deliver magnificent bokeh. Deep, creamy background and foreground bokeh at F1.4 are ideal for making portrait subjects stand out. Advanced features that contribute to superb bokeh quality include XA (extreme aspherical) elements that effectively prevent onion-ring bokeh, and careful optimization of spherical aberration during design and manufacture. A lightweight and compact lens with incredible performance XA (extreme aspherical) elements precisely positioned in an innovative design, high-thrust XD linear motors, and the latest compact circular aperture unit work together in a large-aperture high-resolution lens that is only 80.6 mm in outer diameter and 96.0 mm in length while weighing just 18.3 oz (516 grams). A unique blend of mobility and low-light performance make it an ideal choice for everything from portraits to snapshots.