Aputure Remote Shutter Release Timer/Intervalometer - 3C Camera Remote for Professional Canon Cameras (Replaces Canon's RS 80-N3) Premium Grade Shutter Cable Release with Timer and Interval Replaces Canon's RS 80-N3; Works with: Canon EOS 7D, 50D, 40D, 30D, 6D, 5D, 20D, 10D, 5D Mark III, 5D Mark II, 1D X, 1D C, 1D Mark IV, 1D(s)Mark III, 1D(s)Mark II(N) Shooting intervals of 1sec-100hrs with shutter delay of 1sec-100hr; Batteries included Perfect for Astro Photography, Product Photography, Macro Photography, Portrait Photography, Wildlife Photography and time lapse videos; Auto focus is available 24 Month Fotodiox Warranty