Capture stunning landscapes & architectural images using this compact & lightweight, high-performance, f/4 fixed aperture, ultra wide-angle zoom lens with Image Stabilizer. Ideal for professionals & enthusiasts. Get more in every shot with ultra wide-angle zoom lens Superior L-series performance with precision optics Enjoy consistent exposures with constant f/4 aperture Capture steady shots even in low light with 4-stop Image Stabilizer Never miss a shot with fast, silent autofocus Ultra wide-angle 16-35mm zoom lens This high performance, fixed aperture, ultra wide-angle zoom lens combines excellent optical performance with flexibility, making it ideal for landscapes, architectural shots, photo journalism, travel & general use – delivering clear, sharp, expansive images with very little distortion. L-series quality The L-series is Canon's flagship professional lens range, representing the best in precision-designed EF optics. L-series lenses combine superior performance with superlative handling, & are resistant to dust & moisture. Constant f/4 aperture ideal to be used in a wide range of light conditions, the f/4 maximum aperture stays constant over the full focal-length range, so there is no variation in shutter speed or ISO when zooming. Sharp images with 4-stop Image Stabilizer The EF 16-35mm f/4L IS USM delivers steady shots in all situations, particularly when shooting handheld in low light or at the macro setting. The lens incorporates Canon’s four-stop Image Stabilizer technology & automatically detects normal shooting or panning motion, switching to the IS mode optimal for either situation. Ultrasonic focusing A ring-type ultrasonic motor drives autofocus extremely quickly, & in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Full-time manual override lets you fine tune focus without leaving AF mode. Smooth background blur A 9-blade circular aperture diaphragm gives out of focus regions a softer, more uniform feel – so your foreground subjects stand out sharply against beautiful, smooth background blur. superb image quality The EF 16-35mm f/4L IS USM incorporates three aspherical elements to ensure corner-to-corner sharpness & clarity throughout the focal range. Two UD (Ultra Low Dispersion) elements virtually eliminate chromatic aberrations. Super Spectra Coating ensure accurate colour balance & enhance contrast. They also reduce flare & ghosting – a common problem caused by light bouncing off a camera's sensor. Fluorine coatings prevent dust & water droplets sticking to front & rear lens elements to help ensure optimum image quality. 0.28m minimum focusing distance With only a 0.28m focusing distance through the entire zoom range, you can get closer to your subjects & still enjoy a wide field of view. Non-rotating front element Easily attach 77mm filters thanks to the non-rotating front element.