Canon
EF 16-35mm f/4L IS USM
High performance, ultra-wide angle zoom lens
The Canon EF 16-35mm f/4L IS USM Lens is a wide-angle zoom lens that features a constant f/4 maximum aperture. The optical design of this lens uses three aspherical elements as well as two UD (Ultra-low Dispersion) elements which helps to minimize chromatic aberrations. Fluorine coating has been applied to the front and rear lens surfaces to reduce flare and ghosting. Lens also features Canon's Optical Image Stabilizer to minimize camera shake up to an effective four shutter speed steps, and a ring-type USM (Ultrasonic Motor) AF Motor for smooth, fast and near-silent autofocusing.