The Canon EF 400mm f/5.6L USM is an exceptional super telephoto prime lens within the renowned L-series, ideally tailored for sports and wildlife photography. Its advanced optical configuration incorporates dual low dispersion glass elements, effectively minimizing color fringing and chromatic aberrations to ensure exceptional clarity. The inclusion of a Super Spectra coating enhances contrast and preserves accurate color reproduction, particularly in challenging lighting scenarios. Additionally, the lens is equipped with a ring-type Ultrasonic Motor (USM) for swift and silent autofocus, complemented by full-time manual focus control, providing photographers with a versatile tool for capturing stunning images with precision.