Canon
24mm f/1.4 L mkI USM
Wide angle prime lens
The Canon 24mm f/1.4 L mkI USM is a wide angle prime that like its mkII replacement, offers excellent image quality. The Ring USM (Ultrasonic Motor) provides for FTM (Full-Time Manual) focusing, and fast and silent autofocus. The wide aperture of f/1.4 makes this lens a great choice for low-light photography.