The RF 50mm f/1.2L USM from Canon is a desirable normal-length prime due to its versatile focal length and bright f/1.2 maximum aperture. This fast design excels in difficult lighting conditions and also benefits from working with shallow depth of field and selective focus techniques. A rounded 10-blade diaphragm also benefits bokeh quality to suit isolating subjects with depth of field. Complementing the imaging capabilities is an apt ring-type Ultrasonic Motor, which delivers fast, near-silent autofocus and full-time manual focus override. Exceptionally bright f/1.2 maximum aperture affords extensive control over depth of field for selective focus applications and also benefits working in low-light situations. An aspherical element is used to correct spherical aberrations and distortion for improved sharpness and accurate rendering. Configurable Control Ring can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation. The rounded 10-blade diaphragm contributes to a pleasing bokeh quality.