Specifications

A superb successor model of the professional zoom lens that is ideal for digital photography

- Professional f/2.8L large aperture standard zoom lens
- Newly developed 18 elements in 13 group optical design
- 1 Ultra-high-precision Ground-glass and 2 high-precision Glass-molded (GMo) Aspherical lens elements
- 1 Super UD and 2 UD lens elements
- 9-blade circular aperture
- 0.38m minimum focusing distance
- Inner focusing design, ring USM and optimized AF algorithm achieve fast, quiet and accurate autofocus
- Optimized lens coatings for digital cameras to ensure excellent color balance and minimize ghosting and flare
- Fluorine coating to make cleaning easier
- Enhanced lens structure to increase durability and toughness to cope with the demand of professional users
- New zoom ring lock to lock the zoom position at wide end
- A 15% weight reduction compared to previous generation
- Dust and water resistance^#