Approx. 9-ft. coiled cord with built-in AF-Assist Illuminator for placement of SB-900, SB-800 or SB-600 off camera. The SC-28/SC-29 makes off-camera TTL flash control easy and assured. With the Nikon D-SLRs, the SC-29 also works as an external AF-assist illuminator. Key Features The SC-29 provides full TTL control for Nikon Speedlights when used off camera with Nikon D-SLRs that utilize a TTL hot shoe. One end slips into the D-SLR's hot shoe and the Speedlight attaches to the other end, when the Speedlight is used off-camera, on a bracket. The SC-29 is approx. 9-ft in length and coiled; and features a built-in AF-Assist Illuminator.