The FE 50mm F2.5 G lens delivers high resolution and beautiful bokeh in an ultra-compact lightweight package, featuring aspherical lens elements for sharp detail across the entire image and an ED (Extra-low Dispersion) glass element to reduce chromatic aberration. Its dual linear autofocus motors keep up with the most demanding cameras for high speed AF tracking. | Fe 50Mm F2.5 G Full | frame Ultra-compact G Lens for Sony Alpha E-mount Cameras | Black | Best Buy