The 300-800mm F5.6 EX DG APO HSM Lens is an extreme telephoto zoom lens, ideal for nature/outdoor or sports photography. Designed for use with full frame digital SLR cameras, it may also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 450 to 1200mm F5.6 most cameras. This lens provides a relatively large constant f/5.6 maximum aperture at all focal lengths. It is
The use of Apochromatic design and 2 SLD (Extraordinary Low DispersionSpecial Low Dispersion) glass elements give full correction of chromatic aberration and provide a high level of optical performance.
The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras.