The SIGMA APO TELE CONVERTER 2x EX DG is a high-performance teleconverter that doubles the focal length of a telephoto lens. This teleconverter is for Nikon. Both the exterior and the lens are in like-new condition. It works perfectly. Included accessories: front and rear caps Nikon teleconverter, teleconverter Brand: SIGMA Model Name: APO TELE CONVERTER 2x EX DG Available for immediate purchase. Price reduction is possible as I want to sell it. Please state your desired price if you are interested in a discount.