This Canon EF-S 10-22mm USM Lens is a high-quality lens compatible with Canon EOS Digital SLRs. It offers a maximum aperture of f/3.5-4.5 and a focal length range of 10-22mm, making it perfect for landscape and architectural photography. The lens is designed with auto and manual focus options and a Canon EF-S (WHITE DOT) mount. In addition, this lens is manufactured in Japan and comes with a compatible filter size of 77mm. It is a great accessory for any Canon user looking to expand their photography skills and enhance their camera's capabilities.