Canon EF 16-35mm f/4L IS USM Lens
The Canon EF 16-35mm f/4L IS USM Lens is a wide angle zoom lens featuring a constant f/4 maximum aperture to provide consistent performance throughout the zoom range. The optical design incorporates three aspherical elements, including one large diameter aspherical element, as well as two UD (Ultra low Dispersion) elements to minimize chromatic aberrations and contribute to high edge to edge sharpness and resolution. A fluorine coating has also been applied to the front and rear lens surfaces to reduce flare and ghosting for maintained colour neutrality and image contrast.
Benefitting working in difficult lighting conditions, an optical image stabilizer has been integrated into the lens design to minimize the appearance of camera shake by up to an effective four shutter speed steps. For fast, smooth, and near silent autofocus performance, a ring type USM (Ultrasonic Motor) AF motor is employed and benefits from an internal focusing design to maintain the overall length of the lens during use. Full time manual focus override can also be utilized for fine tuned focusing precision as closely as 11inches throughout the zoom range.
|Compatibility||35mm Film / Full-Frame Digital Sensor|
|Maximum Aperture||Maximum Aperture||f/4|
|Principal Specifications||Focal Length||16 - 35 mm|
|Technical||Minimum Focus Distance||11.02 (28 cm)|
|Physical||Dimensions||82.6 x 112.8 mm|
|Rating*||1 Star||2 Star||3 Star||4 Star||5 Star|