DescriptionUnparalleled optical performance in a fast and steady telephoto zoom: In the pursuit to achieve the most outstanding image resolution in the 70-300mm class, Tamrons Anniversary lens, the SP AF70-300mm F4-5.6 Di VC USD (Model A005) utilizes an advanced optical design that features an LD (Low Dispersion) and an XLD (Extra Low Dispersion) lens element made from specialized materials that prevent chromatic aberration.Real time price comparison from PriceGrabber