The Sigma 30mm f/1.4 DC HSM is a fast aperture f/1.4 lens with an angle of view similar to that of human vision. From 40cm (15.7") minimum focusing distance to infinity, this prime lens creates very sharp, vivid and detailed images and is suitable for cameras with an APS-C sensor. From an early stage, flare and ghosting are thoroughly measured to establish the design which is resistant to strong incident light such as backlight. Sigma's Super Multi-Layer Coating reduces flare and ghosting, and provides sharp and high contrast images even in backlit conditions. The HSM (Hyper Sonic Motor) provide quiet, high-speed auto-focus shooting, as well as full-time manual focus override, which is important for videographers and those who require precise control. The lens is ideal for beautiful bokeh, snap shots, portraits, landscapes and more.