The EF 85mm f/1.4L IS USM from Canon is a short telephoto prime well-suited to portraiture applications. As an L-series lens, it is characterized by a sophisticated optical layout that includes one glass-molded aspherical element to greatly reduce spherical aberrations and distortion for improved sharpness and clarity. this lens also incorporates a four-stop-effective optical image stabilization system that minimizes the appearance of camera shake for sharper handheld shooting. A ring-type Ultrasonic Motor (USM) also affords quick and accurate autofocus performance, along with full-time manual focus override for fine-tuned control. Portrait-length prime is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it will provide a 136mm equivalent focal length. One glass-molded aspherical element helps to reduce distortion and spherical aberrations for improved sharpness and clarity. A ring-type Ultrasonic Motor (USM), along with optimized focusing algorithms and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override. Rounded nine-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.
Canon EF 85mm F/1.4L IS USM Specs