The Sigma DC 18-35mm F/1.8 Art Lens is a high-quality zoom lens designed for Canon compatible cameras. It features a fast and versatile maximum aperture of f/1.8, making it ideal for low light conditions and capturing beautifully blurred backgrounds. The lens is part of Sigma's DC series, known for its exceptional image quality and build. With auto focus capabilities and a sturdy Sigma mount, this lens is lightweight at 1.78 lbs and has a 72mm compatible filter size, offering photographers a reliable and powerful option for their photo gear.