An upgrade of Canon's popular wide-angle zoom, this lens has a large range of focal lengths, offering supreme sharpness across the entire frame, with fast, quiet autofocus. A constant f/2.8 maximum aperture makes this an ideal lens for photography in low light settings. Key Features : Because the f/2.8 max aperture stays constant over the full 16-35mm focal range, there is no variation in shutter speed while zooming. The result is supreme sharpness whatever the zoom level, and high quality detail in low light settings. Ring-type Ultra Sonic Motor and high performing CPU work together for faster, near-silent focusing. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Full-time manual override is available, making it possible to adjust focus without leaving AF mode. 9 blade circular aperture produces imagery with stunning depth of field. Backgrounds can be beautifully blurred while the foregrounded subject stands out with exceptional clarity. 16 lens elements in 11 groups include double surface glass-moulded lenses and Ultra Low Dispersion to significantly minimise distortion and chromatic aberration. The result is consistent sharpness and corner to corner detail throughout the frame. Advanced Air Sphere and SubWavelength lens coating combat ghosting and flare for confident shooting in all environments. Weather sealed-construction ensures a rugged durability for sure shooting in all weathers. Ideal for landscapes, architecture, and night or low-light shots. For use with EF mount Canon DSLR cameras. Accessories Included : Lens Cap E-82II Lens Hood EW-88D Lens Pouch LP1222 Rear Cap Lens Dust Cap E
