Canon EF 50mm f/1.2 L USM LensClearly distinguished by its bright maximum aperture, the Canon EF 50mm f 1. 2L USM is a normal length L series prime also sporting a robust physical design and advanced optical layout. The impressively fast f 1. 2 maximum aperture affords a great degree of control over depth of field for isolating subjects and producing desirable selective focus effects. Complementing these qualities is a sophisticated optical composition, which includes one