- EF Mount L-Series Lens/Full-Frame Format
- Aperture Range: f/1.4-22
- Blue Spectrum Refractive Optics
- Two Aspherical Elements, One UD Element
- Subwavelength and Fluorine Coatings
- Ultrasonic Autofocus Motor
- Full-Time Manual Focus Override
- Weather-Sealed Design
- Rounded 9-Blade Diaphragm
