Short portrait-length prime lens offers a 63mm equivalent focal length to realize a slightly narrowed field of view for isolating subject matter.

Impressively bright f/1.7 maximum aperture offers great control over depth of field for working with selective focus techniques and also suits working in low-light conditions.

Two Super ED elements greatly reduce chromatic aberrations and color fringing throughout the aperture and focusing ranges for notable clarity and color fidelity.

One aspherical element controls distortion and spherical aberrations in order to achieve high sharpness and accurate rendering.

Physical aperture ring allows for intuitive adjustment over exposure settings and incorporates a C (Command) position to permit camera-based aperture setting.

Dust- and weather-sealed physical construction enables working in harsh climates and temperatures as low as 14°F. Also, the front element features a fluorine coating to repel dust, dirt, and moisture and to aid in cleaning.

Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.

A ring-type Ultrasonic Motor (USM), along with an internal focusing system, high-speed CPU, and optimized AF algorithms, are employed to deliver fast, precise, and near-silent autofocus performance as well as full-time manual focus override.

As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.

Protective fluorine coating has been applied to the front bulbous element to resist fingerprints and smudges and to make cleaning significantly easier.

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.