16-35mm f/4L IS USM Lens

EF Mount L-Series Lens
Aperture Range: f/4 to f/22
Optical Image Stabilizer
Two UD and Three Aspherical Elements
Fluorine Coating
Internal Focusing Ring-Type USM AF Motor
Full-Time Manual Focus Override
Water- and Dust-Resistant with Filter
Nine-Blade Circular Aperture
Minimum Focusing Distance: 11"