EF-Mount L-Series Lens/Full-Frame Format
Aperture Range: f/4 to 22
Four GMo Aspherical Elements
Air Sphere Coating
Ring-Type Ultrasonic Motor AF System
Optical Image Stabilization
Internal Focus; Full-Time MF Override
Zoom Lock Switch; Fluorine Coating
Dust- and Water-Resistant Construction
Rounded 10-Blade Diaphragm