Polaroid USB Focus Remote Controller For The Canon Digital EOS Rebel T3 (1100D), T3i (600D), T1i (500D), T2i (550D), 60D, 60Da, 5D Mark 2 (II), 5D Mark 3 (III), 7D, 1D Mark IV, Kiss X5, Kiss X4, Kiss X3, Kiss X50 Digital SLR Cameras Programmed Auto?Focus in Still and Video Mode Controls Exposure, Live?View And Focus Settings Handhold Or Use Industry Standard Tube Mounts Two USB Ports For Ergonomic Flexibility  Lightweight Liquid Crystal Display Shows Adjustment Settings  Multiple Focus Options in Still Mode