The item in this listing is an Open Box (packaging maybe slightly distressed). The unit powers on with factory settings restored and includes the original accessories. The unit may have some minor cosmetic marks. Product comes with a Minimum 90 days warranty
• Special low-dispersion glass, plus a seven-group zoom system and multi-layer optics, enable this wide-range zoom lens. The zoom lock mechanism helps eliminate zoom slippage when the lens is tilted up or down. Detachable hood to protect the front of the lens from extraneous light. Accepts 13mm filter
• Sigma 50-500mm f/4.0-6.3 EX DG HSM is an ultra superzoom lens that encompasses all popular focal lengths from the 50mm normal to 500mm ultra-telephoto; a 10:1 zoom ratio which provides tremendous versatility.
• The use of an apochromatic design, four elements of SLD (Special Low Dispersion) glass & a seven group zoom system of multicoated optics enables this lens to provide a high level of performance as well as versatility. A rear focus system insures quick, convenient manual focus and a non-rotating.
• The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor
• By adding the optional Sigma APO teleconverter, you can use this lens as a 140-700mm f/7.3-8.8 Manual Focus ultra-telephoto zoom lens with a 1.4X EX teleconverter, or as a 200-1000mm f/10.4-12.6 MF ultra-telephoto zoom lens with a 2X teleconverter