For discerning architectural photographers, there is no lens that is too wide. Tilt and shift movements, features normally found on large format cameras, can be bestowed upon a smaller format of camera with a lens such as this Canon 17mm f/4L TS-E Lens.Being a Canon "L" lens, by definition it is a premium Canon optic. The 17mm TS-E has several distinct elements that make it stand apart from more common glass. Firstly, designers integrated a set of physical controls that allows users to rotate the direction of the tilt and shift independently of one another. Secondly, there is ±6.5° of tilt and ±12mm of shift that gives photographers ample ability to correct for perspective when taking images of interior or exterior spaces, and landscapes.