Nikon SU-4 - Controlador de Flash Escravo Sem Fio (com SG-2)

The SU-4 enables wireless remote slave flash and can be attached to any current Nikon Speedlight. The SU-4 detects the firing of the master flash (including built-in speedlights) and sends a firing start signal to the slaved unit. The SU-4 stops the firing of the slaved flash by detecting the firing stop of the master flash. Use of SU-4's eliminates connecting cords. Operates up to approximately 23 feet from the location of the main flash.

NOTE: This unit is not compatible with digital SLR cameras.