The Canon EF 70-200mm f/2.8L IS II USM L-series telephoto zoom is characterized by its bright f/2.8 constant maximum aperture and optical image stabilization. The fast maximum aperture affords greater control over depth of field and working in low-light conditions while the Image Stabilizer compensates for four stops of camera shake for sharper handheld shooting. As an L-series lens, the 70-200mm II also features a sophisticated optical design that uses five ultra-low dispersion elements and one fluorite element to reduce color fringing and chromatic aberrations for improved clarity. Also, a Super Spectra coating has been applied to help reduce lens flare and ghosting for greater contrast and color neutrality.
Complementing its optical assets, the also includes a ring-type USM and internal focusing mechanism for quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. Additionally, the lens is weather-sealed for use in trying environmental conditions and has a removable rotating tripod collar for working on a tripod or monopod.