One of the most important needs during your photo shoot sessions will be the extension of the flash for a desired impact. The Olympus Cable TTL Pin is the right choice in providing the perfect solution. It is specially designed to be attached to the external TTL socket of your digital camera on one end and also connect to the TTL connector on the FL-BK01 Flash bracket on the other end. This helps in focusing the flash light efficiently with the help of this cable. It is highly compatible and provides TTL off-camera support with the FL-20, FL-36, FL-40, or FL-50 Flash.