Extreme performance and super-telephoto reach combine in Nikons lightest 600mm f/4, with built-in 1.4x teleconverter to increase focal length to 840mm. Exceptional S-Line optics with immense detail and groundbreaking anti-reflection performance. Fast, silent and accurate autofocus with 5.5 stops of optical VR. All in a balanced, lightweight design optimized for hardworking professionals. This is a super-telephoto reimagined for todays high-performance mirrorless.