The Sigma 120-300mm F2.8 EX APO HSM lens for Canon EF cameras is a high-quality telephoto zoom lens designed for professional photographers. With a fast maximum aperture of f/2.8, this lens provides excellent low-light performance and beautiful bokeh. The advanced Hyper Sonic Motor (HSM) ensures fast and accurate autofocus, while the optical design includes Special Low Dispersion (SLD) glass elements for exceptional image quality. This lens is ideal for capturing sports, wildlife, and events with its versatile focal length range. The Sigma 120-300mm F2.8 EX APO HSM for Canon EF is a top choice for photographers looking for a premium telephoto zoom lens.