Sony_FE_100-400mm_F4.5-5.6_GM_OSS
The Sony FE 100-400mm F4.5-5.6 GM OSS is a premium, variable maximum aperture full-frame telephoto zoom lens for the Sony E-mount, announced by Sony on April 19, 2017.[1] [2]
The FE 100-400mm GM lens is currently the second longest focal length native zoom lens offered for the Sony E-mount, only surpassed by the Sony 200-600mm G lens. Though designed for Sony's full frame E-mount cameras, the lens can be used on Sony's APS-C E-mount camera bodies, with an equivalent full-frame field-of-view of 150-600mm.