At the long end of Canon's L-series lens lineup, the EF 800mm f/5.6L IS USM is a super telephoto prime distinguished by its impressive reach and advanced optical design. Utilizing two fluorite elements, one Super UD element, and one ultra-low dispersion element, chromatic aberrations and color fringing is virtually eliminated and imagery exhibits notable clarity, sharpness, and color accuracy. A Super Spectra coating has also been applied to suppress flare and ghosting in order to achieve greater contrast when working in backlit and harsh lighting conditions.