SU-4 Wireless Remote TTL Flash Controller
- Authentic Nikon accessory
- 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.
- Detects the firing of the master flash (including built-in Speedlight) and sends a firing start signal to the slave unit.
- Terminates the firing of the slave flash by detecting firing stop signal. Eliminates the need for connecting cord.
- Operates effectively up to 23 or 25 feet from the location of the main flash.
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