Canon EF 70-300mm f/4-5.6 IS USM Lens for 509.00 Shipped

Canon EF 70-300mm f/4-5.6 IS USM Lens for 509.00 shipped after code SGDS20.  Here is a screenshot for your reference.  Note that it is also available here for $519.99 shipped.  This is a 70-300mm telephoto zoom lens with f/4-5.6 maximum aperture for Canon EOS SLR cameras and is powered by an Ultra-Sonic Motor (USM).  Its image stabilization provides 3-stop shake reduction.  As a comparison,  Best Buy has this Canon telephoto lens for $649.