300-800mm f/5.6 EX DG APO IF HSM Zoom Lens
300-800mm f/5.6 EX DG APO IF HSM Zoom Lens is ideally suitable for sports, action and wildlife photography thanks to its focal length range of 300-800mm and a constant wide aperture of f/5.6. The lens features 2 Special Low Dispersion (SLD) elements for better color correction, SigmaÕs HSM (Hyper-sonic Motor) technology for quieter auto-focusing and an inner focusing mechanism. The lens features a 9-blade aperture diaphragm and 18 elements arranged in 16 groups.
SigmaÕs APO 300-800mm F5.6 EX DG HSM is another unique lens in the line of Sigma offerings. An ultra telephoto as no other camera or lens manufacturer offers the serious photographer! Featuring a constant aperture of F5.6 throughout the entire zoom range, this lens is ideal for photographing wildlife when there is no way of controlling the distance of the animal to the camera. With a simple turn of the zoom ring, the photographer can instantly adjust the composition of the image without moving or disturbing the subject. Similarly, the zoom accommodates sporting photography such as soccer or surfing where the rapidly changing distance of the action requires massive changes in focal length in a matter of seconds. Two SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range. At the rear of the lens, a drop in 46mm filter holder is provided so that the photographer can easily add inexpensive color correction or light balancing filters. A perfect lens for surveillance use, its stealth black finish is unobtrusive and easily concealed.