This excellent Canon telephoto lens has a closest focusing distance of 85mm and an EF mount that is designed for Canon digital SLR cameras. The optic lens has been designed for capturing perfect portraitures that let in-focus subjects stand out against a blurred background. In addition, the lens features a non-rotating front element during focusing, enabling special filters, such as polarisers and graduates, to be used. The EF 85mm f/1.8 USM lens produces beautifully sharp and clear images at all apertures. A virtually circular aperture diaphragm gives out-of-focus regions a softer, more even feel, and lets in-focus subjects stand out against a blurred background. The large aperture of the f/1.8 lens lets photographers shoot hand-held in difficult, low-light conditions. The captured images will always be beautifully sharp and clear down to the slightest details. In addition, with the large aperture, you can also restrict the depth of field to achieve creative effects. A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Also, excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, a full-time manual override is available, making it possible to adjust focus without leaving AF mode.