Here are some of the lens features and specifications:
3 LD (Low Dispersion) lens elements effectively compensate for axial chromatic aberrations, a potential issue for ultra-telephoto lenses, and other various aberrations.
eBAND (Extended Bandwidth & Angular-Dependency) Coating, with superior anti-reflection performance to eliminate flare and ghosting, provides flawless, crystal clear images.
High-speed Dual MPU (Micro-Processing Unit) control system delivers quick and highly responsive autofocus performance and outstanding vibration compensation.
Lightest weight (39.3 oz.) lens in the ultra-telephoto zoom lens category.
Optional accessory tripod mount is Arca Swiss-compatible.
MOD (Minimum Object Distance) of 59" and maximum magnification ratio of 1:3.6
Moisture-Resistant Construction and Fluorine Coating for weather protection
Fully compatible with 1.4X teleconverter and TAP-in ConsoleTM