- First professional ultra-wide angle EF zoom lens with optical Image Stabilizer
- Newly developed 16 elements in 12 group optical design
- Use of 1 large-diameter Glass-molded (GMo) dual-surface aspherical element, 1 GMo dual-surface aspherical element and 1 optimally placed GMo aspherical element to reduce distortion, curvature of field and astigmatism significantly, achieving improvement in image quality from center to peripheral throughout the zoom range.
- Use of 2 Ultra-low Dispersion (UD) lenses to minimize chromatic aberration of magnification and reduce color blur around the edges of subjects, giving high quality image of high levels of resolution and high contrast
- Compact optical image-stabilizer unit offers share compensation up to 4-stop1 shutter speed and automatically detects normal shooting and panning for optimized compensation
- 9-blade circular aperture produces beautiful out-of-focus image
- 0.28m minimum focusing distance with 0.23x maximum magnification
- Lens structure with improved zoom durability and resistance to shock and vibration to cope with the demand of professional users
- Weights approximately 615g with a length only 112.8mm for high portability
- 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 on foremost and rearmost lens surfaces makes cleaning easier
- Dust and water resistance design2 to enable shooting in harsh conditions
1 CIPA Standard, Focal Length: 35mm, EOS-1D X is used
2 Requires optional Canon Protect filter and use with EOS-1D Series and EOS-1V body, however it is not recommended for use under rain
