EF Mount Lens / Full-Frame Format
Gapless Dual-Layer Diffractive Optics
Large Diameter Aspherical Element
Ultra Low Dispersion Element
Protective Fluorine Coatings
Ultrasonic AF Motor and Internal Focus
Optical Image Stabilizer with 3 Modes
Power Focus Mode; Full-Time MF Override
Dust- and Water-Resistant Construction
Rounded 9-Blade Diaphragm