FC-311 is a special remoted cable for Canon EOS series, it control the flash simultaneously by connecting Canon camera and the external flashgun, the function as well which set on the top of the camera. Support all functions of Canon EOS, as well all E-TTL functions of Canon flash system.
Move your E-TTL Flash off-camera to get any lighting angle you desire, and still retain all the functions and capabilities possible with Canon E-TTL ("Intelligent Through-The-Lens") Flash Photography.
1.8M TTL Remote Cord x1 (it's the stretched length)
English manual x1
Any Canon SLR (Digital or Film) and Flash combination can make use of this Off-Camera cord. It is fully compatible with the 220EX, 300EZ, 380EX, 420EZ, 420EX, 430EZ, 430EX, 480EG, 540EZ, 550EX, 580EX II