Designed by Tokina to allow photographers to create true works of art, the 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. This lens sports a refined optical design, which includes both low dispersion and aspherical elements, to match contemporary high-resolution sensors in order to realize a high degree of sharpness and clarity. An ELR Coating is also featured to control surface and internal reflections in order to greatly reduce flare and ghosting. Suiting a multimedia method of working, a ring-shaped ultrasonic motor has been used to provide fast, near-silent autofocus performance that is ideal for photograph and video applications alike. Additionally, this 50mm f/1.4 also sports a weather-sealed construction for working in inclement weather conditions.