Superlative G Master quality in the world’s lightest 600mm f/4.0 lens uses two XD (extreme dynamic) Linear Motors for fast precise autofocus to take full advantage of the world’s fastest cameras - reaching speeds up to 20fps with the 24MP α9 and up to 10fps with the 42.4MP α7R III and 24.2MP α7 III. World’s lightest 600mm super-telephoto full-frame F4 lens Large XA (extreme aspherical) element suppresses common aberrations 2x Extreme Dynamic - XD Linear Motors for fast, precise, quiet AF G Master quality with superior focusing speed up to 20fps Balanced weight eliminates “front heavy” nature of similar lenses 3x fluorite and 1x ED glass element reduces chromatic aberration F4 with 11-blade circular aperture contributes to gorgeous bokeh Nano AR coating effectively suppresses ghosting and flare Optical SteadyShot™ image stabilization significantly reduces blur 4x customizable multi-function focus hold buttons and function ring Light magnesium construction with dust/moisture resistant reliability High-performance with 1.4x / 2.0x teleconverters
