Walimex 15535. Closest focusing distance: 2 m, Fixed focal length: 50 cm. Compatible products: Canon EOS 300D, 350D, 400D, 450D, 500D, 1000D, 10D, 20D, 30D, 40D, 50D, 5D, 5D Mark II, 1DMarkIII, 1. Filter size: 3.4 cm, Weight: 705 g. Dimensions (WxDxH): 100 x 100 x 120 mm