Sigma APO 300-800mm f/5.6 EX DG HSM Lens for Canon EF

Covering an impressive range of super telephoto focal lengths, the Canon EF-mount APO 300-800mm f/5.6 EX DG HSM from Sigma is a sophisticated zoom characterized by its advanced optics and constant f/5.6 maximum aperture. Designated an apochromat, this lens uses a pair of extra-low dispersion elements to effectively eliminate color fringing and chromatic aberrations for high clarity and color accuracy throughout the zoom range. A multi-layer coating has also been applied to lens elements to control flare and ghosting for improved contrast and clarity.