SU-4 Wireless Remote TTL Flash Controller
The SU-4 Wireless Remote TTL Flash Controller enables wireless remote flash with automatic TTL or manual exposure control.
Can be attached to some current and prior Nikon Speedlight models and cameras.
- The SU-4 Wireless Remote TTL Flash Controller allows for remote flash operation with some current and previous Nikon Speedlights and camera models.
- The SU-4 also terminates the firing of the slave flash when it detects the firing stop signal.
- The SU-4 detects the firing of the master flash (including a built-in Speedlight) and sends a firing start signal to the slave unit.
- It eliminates the need for a connecting cord. The SU-4 operates effectively up to 25-ft. from the location of the main flash.