The Canon EF 50mm f/1.8 STM Lens is a small, normal-length prime that is ideal for daily photography and has one of the most adaptable focal lengths on the market. Working in challenging lighting conditions is made easier by the bright f/1.8 maximum aperture, which also gives you more control over depth of field for isolating subject matter. When working in harsh and backlit environments, individual elements have a Super Spectra coating to help reduce flare and ghosting and achieve better contrast and color accuracy. Along with full-time manual focus override, an STM stepping AF motor is also utilized to achieve fast and almost silent autofocus performance. Important Features Full-Frame/EF-Mount Lens Format Range of Apertures: f/1.8 to f/22 Details of the Super Spectra Coating STM Stepping AF Motor Minimum Aperture f/22 Lens Maximum Aperture f/1.8 Focal Length 50mm