- EF-Mount Lens/Full-Frame Format
- Aperture Range: f/2.8 to f/32
- Super UD and Fluorite Elements
- Super Spectra and Air Sphere Coatings
- Ring-Type Ultrasonic Motor AF System
- Customizable Electronic Focusing Ring
- Optical Image Stabilizer
- Weather-Sealed Design, Fluorine Coating
- Detachable, Rotatable Tripod Collar
- Rounded 9-Blade Diaphragm
- Canon EF 400mm f/2.8L IS III USM Lens
- E-180E Lens Cap
- Lens Dust Cap E (Rear)
- ET-155 (WIII) Lens Hood
- 52mm Drop-in Gelatin Filter Holder (Black)
- Lens Case 400E
- Limited 1-Year Warranty