Key Features
Built-in 1.4x teleconverter for instant switch between 600mm and 840mm focal lengths
Constant f/4 maximum aperture for strong low-light performance and subject isolation
Advanced optical construction with ED, Super ED, SR and fluorite elements for high sharpness and low chromatic aberration
Nano Crystal Coat and Meso Amorphous Coat for strong flare and ghosting reduction
Silky Swift VCM autofocus system for ultra-fast, accurate and near-silent focusing
5.0-stop Vibration Reduction (VR) for sharp handheld shots and improved stability
Magnesium alloy body with dust- and drip-resistant construction for professional field use
Designed for sports, wildlife, birds, and aviation photography requiring extreme reach
Optimized for video with minimal focus breathing and quiet operation
Ergonomic controls including memory recall, function buttons, and customizable rings
Internal focusing design for balanced handling and stable operation on support systems