Description

The Canon EF 17-40mm f/4L USM Lens is a versatile wide-angle zoom lens known for its constant f/4 maximum aperture and robust L-series build. With one Super Ultra-Low Dispersion element and three aspherical elements, it delivers exceptional image quality with minimized distortion and aberrations. The lens features a fast and quiet USM autofocus system, making it ideal for landscape and architectural photography.