Canon EF 50mm f/1.0L USM - Canon EF Mount

The Canon EF 50mm f/1.0L USM remains the fastest autofocus lens ever produced for the EF system. Its ultra-wide aperture is achieved through a massive ground aspherical element, designed to provide a distinctively shallow depth of field and soft bokeh for portraiture. As a 'focus-by-wire' lens, the electronic manual focus ring requires power from the camera body to operate. Potential buyers should be aware that this lens is no longer officially serviced by Canon. SDS pays close attention to the autofocus motor, as these components are now difficult to replace. The rear element sits very close to the mount and should be inspected for chips. Due to the weight of the glass, internal alignment is critical; we check for edge-to-edge consistency and ensure the electronic focus ring operates without lag or grinding.