600 HANDLE GRIP For use as an off-camera facility with full-dedicated functions retained. Used for sure fast and safe control. Versatile steady support with coil extension lead up to one metre. Built in spare battery compartment and with tripod socket. 600AF HANDLE GRIP A sturdy grip and bracket which enables the 630AF / 630AFD to be used off - camera, giving much improved illumination to portraits and other subjects. Retains all programmed dedicated functions between camera and gun. The AF illuminator remains on the camera for accuracy and is connected to the flash with an extension lead.