The Canon EF 85mm f 1.8 USM Lens is a highly regarded prime lens designed for flawless still photography offering an excellent balance of performance image quality and portability. It features a bright f 1.8 maximum aperture that delivers consistent illumination in low light conditions and provides precise control over depth of field for selective focus techniques. A ring type Ultrasonic Motor enables fast accurate and quiet autofocus with full time manual focus override and the non rotating front element allows easy use of polarizing and graduated filters. Super Spectra coating is applied to suppress flare and ghosting while enhancing contrast and color accuracy even in challenging lighting environments. Designed for full frame Canon EF mount DSLR cameras this lens can also be used on APS C models where it provides an equivalent focal length of approximately 136mm. An eight blade rounded diaphragm produces smooth pleasing background blur making it especially popular for portrait photography. The optical design consists of 9 elements in 7 groups and supports a minimum focusing distance of approximately 2.79 feet with a maximum magnification of 0.13x. Compact and lightweight the lens measures approximately 2.95 inches in diameter and 2.81 inches in length and weighs about 14.99 ounces making it easy to carry and handle. Included in the box are the Canon EF 85mm f 1.8 USM Lens E 58 II 58mm lens cap and rear lens dust cap. International Version with 1 year seller warranty. Warranty is managed directly by the seller instead of the manufacturer. To use the warranty please email customer service.