The PocketWizard FlexTT5 Transceiver Radio Slave is part of an ultra-versatile radio slave system and is dedicated specifically to the Nikon i-TTL flash control system. It simply slides directly into the camera's hot shoe and there are no special settings to make or modes to call up. Use the camera, on-camera flash, or flash commander controls for flash compensation, zone and ratio control.
It supports single or multiple dedicated flash units. The FlexTT5 is the ideal addition to any Nikon i-TTL flash system. Since this system works on digital radio technology, it can support E-TTL operation up to an amazing 800', even around corners, out-of-sight, or in bright sunlight.