The Canon 14mm f2.8 USM lens is a light, small and ultra wide lens that doesn't distort lines. Maximum aperture is f2.8 and the closest focusing distance is 10''. This ultrawide Canon lens is best used to get the viewer closer to the action rather than to get super wide panoramic shots. It can be used on a big variety of cameras but is best suited with full frame cameras such as the Canon 5D Mark iii, Canon 5D Mark ii. With a Metabones adapter, it can also be a good wide lens solution for the Sony FS700 and Sony FS100.