Sigma 300-800mm f/5.6 EX DG HSM APO IF Ultra Telephoto Zoom Lens for Nikon SLR Cameras for $7604.05

The Sigma APO 300-800mm f5.6 EX DG HSM Lens for Nikon Digital SLR Cameras provides a constant fast maximum aperture throughout the entire zoom range and is optimized for digital SLR cameras. By continuously varying the angle of view from 8.2 degrees to 3.1 degrees, the lens takes a lot of the footwork out of picture composition. The multi-layer lens coating and lens design reduce flare and ghosting, which is a common problem with digital cameras, and it also creates an optimum color balance.