Yongnuo IR Wireless Remote Control RC-6 shutter release for Canon EOS T1i/500D / T2i/550D / 5D Mark II / 7D / 60D / T3i / 600D / XSi / 450D/ XSi / 450D / XT / 350D / 300D Dimensions: 0.25" x 1.25 x 2.5" Will operate with 2 second delay mode or instant shot. Helps eliminating camera motion when pressing shutter release button.