The Tokina opera 50mm f/1.4 FF is a fast normal-length prime lens for Canon EF-mount DSLRs. Its especially bright f/1.4 maximum aperture offers improved control over depth of field for working with selective focus techniques and also benefits shooting in difficult lighting conditions. An ELR Coating is also featured to control surface and internal reflections in order to greatly reduce flare and ghosting. Additionally, this 50mm f/1.4 also sports a weather-sealed construction for working in inclement weather conditions. Notably bright f/1.4 maximum aperture benefits working in low-light conditions and also affords increased control over depth of field for isolating subject matter and working with selective focus techniques. Ring-shaped ultrasonic motor delivers quick, quiet autofocus performance, as well as full-time manual focus override, that suits both stills and video applications. Weather-sealed construction enables working with the lens in trying environmental conditions.