This Sigma DC 18-35mm F/1.8 Art Lens is a high-quality lens designed for Canon cameras. With a maximum aperture of f/1.8, it allows for excellent low-light performance and beautiful bokeh. The lens has a versatile focal length range of 18-35mm and is equipped with auto-focus for quick and accurate focusing. This lens is in excellent working order and has always been protected by a UV filter (not included). It is lightweight at 1.78 lbs and compatible with 72 mm filters. Whether you are a professional photographer or an enthusiast, this Sigma DC 18-35mm F/1.8 Art Lens is a must-have for your camera bag.