The EF 50mm f/1.8 STM Lens from Canon is a compact, normal-length prime well-suited to everyday shooting. The bright f/1.8 maximum aperture benefits working in difficult lighting conditions and also affords increased control over the depth of field for isolating subject matter. Additionally, an STM stepping AF motor is used to realize quick and near-silent autofocus performance along with full-time manual focus override. Bright f/1.8 maximum aperture enables control over depth of field for selective focus applications and also benefits working in low-light situations. An STM stepping AF motor realizes smooth, near-silent autofocus that is complemented by advanced AF algorithms and a high-speed CPU for fast AF performance. Additionally, a full-time manual focus override is also available. The rounded seven-blade diaphragm contributes to a pleasing out-of-focus quality that benefits the use of shallow depth of field and selective focus techniques.