The Optex Black TTL Flex Arm for Nikon is a TTL enabled flex arm for Nikon cameras that allows the shaping, and direction of your on camera flash using power from the hot-shoe. The Flex are attaches to the hot-shoe mount of any compatible Canon camera, and provides a full TTL flash connection. The quick and limitless positioning of your flash make this a great tool for on-location, in studio, portrait and macro photography. The flex arm can also be used with other accessories such as microphones and LED lights, and reflectors.