Features:
- EF-Mount Lens/Full-Frame Format
- Aperture Range: f/2.8 to f/22
- One Super UD Element, Two UD Elements
- Three Aspherical Elements
- Super Spectra and Fluorine Coatings
- Ring-Type Ultrasonic Motor AF System
- Weather-Sealed Construction
- Rounded 9-Blade Diaphragm
