Sony FE 400mm f/2.8 GM OSS Lens

E-Mount Lens/Full-Frame Format
Aperture Range: f/2.8 to f/22
Three Fluorite Elements, One ED Element
Nano AR and Fluorine Coatings
XD Linear Motor AF System
Optical SteadyShot Image Stabilization
Power Focus, Preset Focus, Focus Limiter
Weather-Sealed Magnesium-Alloy Design
Fixed, Rotating Tripod Collar
Rounded 11-Blade Diaphragm