Well-suited to portraiture and isolating subject matter, the Canon EF 100mm f/2 USM is a short-telephoto prime characterized by its slightly compressed perspective for achieving flattering results. Its bright f/2 maximum aperture also benefits using shallow depth of field techniques as well as working in low-light conditions. Helping to achieve high color fidelity and contrast, a Super Spectra coating has been applied to individual elements and serves to minimize reflections, lens flare, and ghosting. Additionally, a ring-type USM is employed to deliver quick and quiet autofocus performance along with full-time manual focus control.