The Canon EF-mount 24mm f/3.5 ED AS UMC Tilt-Shift Lens from Bower is a wide-angle, full-frame lens fitted with perspective control and tilt-shift functions. A tilt-shift lens allows the user to control perspective and correct convergence of lines within the frame, making it especially useful for architecture, landscape, and product photography. The optical tilt mechanisms provide precise control of depth of field along with perspective control. This 24mm f/3.5 lens is compatible with both digital and film formats and, when used on an APS-C sensor, provides a 35mm-equivalent focal length of 38.4mm. The tilt-shift function on the 24mm f/3.5 lens allows adjustment of the focal plane by an angle of +/-8.5° and enables parallel shift of the optical axis by +/-12mm. The tilt-shift section of the lens rotates left 90° (with 30° click-stop adjustment) and the lens mount can rotate left or right by 90° (with 30° click-stop adjustment). The lens is comprised of 16 elements in 11 groups, including two aspherical elements and two extra-low dispersion (ED) elements, which reduce chromatic aberrations and provide sharp details with accurate color separation. Multi-layered, anti-reflective UMC coatings on each lens element allow even light transmission, minimizing flare and ghosting.