Opteka 25mm Auto Focus DG EX Macro Extension Tube for Canon EOS 1D, 5D, 6D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, SL1 Rebel XT, XTi, XS, XSi, T1i, T2i, T3, T3i ,T4i, T5i, 700D, 650D, Kiss X5, Kiss X4, Kiss X6i, kISS X7i EOS 550D 600D DSLR Cameras Review