Sigma 800mm f/5.6 EX DG HSM APO Ultra Telephoto Lens for Canon SLR Cameras
The Sigma 800mm f5.6 EX HSM APO ultratelephoto lens incorporates two extraordinary low dispersion (ELD) glass elements, which help reduce chromatic aberration to the minimum limit. With a fast f5.6 aperture, this apochromatic lens also incorporates an internal focusing system to give you fast, responsive autofocus speed. The ultraquiet hyper-sonic motor (HSM) lets you shoot pictures without disturbing your subjects. Polarizing filters are extremely easy to use with this lens because of its rotary filter holder, located in the rear part of the lens barrel. The optic materials are lead- and arsenic-free ecological glass. This model is dedicated to Canon AF SLR cameras. Low Price - Click Now!