Description
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. Two Extra Low Dispersion (ELD) glass elements in the front lens elements reduce chromatic aberration to a minimum and also ensure sharp, quality images of high contrast. The lens' Hyper Sonic Motor (HSM) provides silent, high-speed and precise auto-focusing with full time manual focus override. The lens also features a drop-in 46 millimeter filter holder in the rear part of the lens barrel, which can be rotated to facilitate the use of filters, including a polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. In addition, since the front of the lens does not rotate, a circular polarizing filter can be easily attached and used. This lens accepts both 1.4x and 2x APO EX Tele-Converters (sold separately).
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