The EF 24mm f/1.4L II USM has a large maximum aperture of f/1.4, making hand-held shooting possible in low light. Such large apertures can be used to restrict depth of field, even at such short focal lengths. Circular diaphragm blades result in smooth out-of-focus regions (bokeh).
A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode.
Canon’s patented lens element coating minimises the ghosting and flare caused by internal reflections within a lens and helps the EF 24mm f/1.4L II USM to deliver crisp, clear images.