EF 50mm f/1.4 USM

The Canon EF 50mm f/1.4 USM is a normal-length prime lens designed for full-frame Canon EF-mount DSLRs, though it also functions on APS-C models where it provides an 80mm equivalent focal length. The lens features a bright f/1.4 maximum aperture that enables shooting in low-light conditions and offers excellent control over depth of field for selective focus work. Its optical design incorporates a Gaussian optics structure with two high refractive index elements to minimize distortion and spherical aberrations while maintaining high sharpness and clarity.

The lens is equipped with a Super Spectra coating applied to individual elements to suppress flare and ghosting, resulting in improved contrast and color accuracy in challenging lighting situations. A micro Ultrasonic Motor (USM) provides fast, precise, and quiet autofocus performance with full-time manual focus override capability. The rounded eight-blade diaphragm contributes to pleasing bokeh quality that further benefits shallow depth of field and selective focus techniques.