Let Canon recommend the product that best suits your needs
The most affordable fixed focal length wide-angle lens in the Canon EF line-up continues to give benefits difficult or impossible to find with zooms. The fast f/2.8 aperture makes it easy to use in low light, and provides a bright viewfinder image in the camera. It focuses as close as 10 inches (0.25m) without accessories. And optically, it provides excellent edge-to-edge contrast and sharpness along with superior correction of linear distortion, so straight lines in a subject (such as architecture) remain straight.