The Canon EF-S lens mount is designed specifically for Canon's APS-C format digital cameras. It allows for a range of lenses that are typically smaller and lighter than full-frame lenses, making them ideal for amateur and professional photographers alike. The EF-S lenses provide a crop factor of 1.6x, which means they can effectively extend the focal length of the lens when used on an APS-C camera. These lenses are known for their versatility and affordability, offering options for various photography styles, including portrait, landscape, and macro. Canon has developed a wide selection of EF-S lenses, ensuring that photographers can find the right lens to suit their needs.