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Sigma 2.0x APO Tele Converter for Nikon SLR Cameras
Product description L1) 2X NIKON TELECONVERTER EX DG APO Amazon.com The Sigma 2.0x APO Teleconverter lens features a high performance optical design with six elements in five groups. It is optimized for use with long telephoto and telezoom lenses, and is ideally suited for use with the f2.8 APO EX HSM zoom lens. Since it uses 10-pin electrical interfaces, there is no loss of autofocusing speed when these teleconverters are used with compatible HSM type lenses. This model is dedicated to Nikon AF SLR cameras. Dimensions 3.9 x 3.8 x 3.7 inches, Weight 14.4

Price is $188.00
Price: $188