Kenko 2X Teleplus - 4 Element DG Auto Focus-Canon EOS 4 elements, multicoated to eliminate internal reflection and flare Compact enough to fit in your pocket Depth of field is 1/2 original lens Maintains original lens minimum focus range Dimensions (DxL): 2.6 x 1 inches (67 x 26mm) / Weight: 4.8 oz. (135g)