The Phottix TTL Flash Remote Cord for Canon OC-E3 gives photographer an easy way to start using their flash off the camera. Maintain TTL functionality and shoot beautiful portraits and product shots. Get creative- don't be limited by on-camera flash. Phottix offers dedicated TTL flash cords an easy way to use off-camera flash. Cables for popular Canon, Nikon, Sony, Olympus (S/O) and Pentax (S/O) cameras flashes are available.