- EF-Mount Lens/Full-Frame Format
- Gapless Dual-Layer Diffractive Optics
- Large Diameter Aspherical Element
- Ultra-Low Dispersion Element
- Protective Fluorine Coatings
Suited for professionals and high-end amateurs that seek mobility, the Canon EF 400mm f/4 DO IS II USM super-telephoto lens is light enough to take into the elements and powerful enough to capture your subject with brilliant colour reproduction.