The FE 70-200mm F2.8 GM OSS delivers superb Image quality throughout the zoom range at all focusing distances with two aspherical elements and one XA (extreme aspherical) element to ensure high resolution throughout the image area. Two ED (extra-low dispersion) glass elements, two Super ED glass elements and one ED aspherical element to minimize chromatic aberration while Sony’s Nano AR (anti-reflective) Coating II subdues flare and ghosting. For additional reach, high-performance 1.4x and 2x teleconverters are available