Cullmann CUlight Trigger Kit 500C komplet odašiljač prijemnik za Canon E-TTL II HSS 61810 TTL Radio Triggers with modern radio transmission are the ideal tools for the individual control of various flashes. The CUlight Radio Trigger System, consisting of the transmitter CUlight RT 500 and the receiver CUlight RR 500, works with radio transmission at 2.5 GHz and does not require a line-of-si