Introduction:

      Yongnuo RF-603 Wireless Flash Trigger

The brand new RF-603 is a remote shutter release as well as a multi-functional radio flash trigger which can synchronously trigger flashes and studio strobes. Through the transceiver based system each item can be used flexibly as a trigger or a receiver. Only 2 AAA batteries are required as power source for each item. The 2.4GHz wireless frequency is suitable in most countries and guarantees high speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m. The synchronization speed can reach to 1/320, depending on the situation it may reach to 1/250 or less. A set consist of 2 equal transceivers. Both of them can be a receiver as well as transmitter. It can trigger 1 flash with one set, since one serves as trigger and one as receiver

Specification：

Type:  FSK 2.4GHz wireless remote system 
Transmitter Distance:  100m 
Channel:  15 different channels and all channels 
Release:  Half-way press, full-way press 
Transmitter Port:  PC Sync 
Receiver Port:  PC Sync, 2.5mm for shutter release 
Time of shooting:  Up to 20000 times 
Receiver stand-by time:  Up to 45 hours (using AAA batteries) 
Dimensions:  37mm x 30mm x 81.5mm 
Weight:  2 x 150g

Features:

1. Works as a wireless shutter release control

Auto focus, continuous shooting, long exposure, half-way pressing, full-way pressing is supported 
Depending on the camera model a special shutter release cable is included in the package

2. Transceiver based system - works as a wireless flash trigger and receiver

Each RF-603 is designed to work as trigger and as receiver. The unit automatically detects the mode it should work in. You have the full flexibility out of your gear.

As a receiver it fires off-camera flashes which are placed on the hot shoe of the transceiver.

Additionally the transceivers PC Sync connector can be used to fire studio strobes. Required cables to 3.5mm (1/8"), 6,35mm (1/4") can be purchased from us. 
Wake up function: Mount the transmitter into hot shoe of the camera, connect the receiver with the flash, press half-way the shutter button to wake up the flash at the same time, the green signal light will be bright for some seconds and then press shutter button completely to fire the flash. This "Wake up" function is only supported for flashes which have a sleep mode. 
As a trigger the RF-603 can be placed in the cameras hot shoe or if you wish be connected with the camera by a PC Sync cable. In the latter case you are free to mount an additional flash top-camera.

One transceiver can trigger more than 1 flash at the same time. You would have to buy additional transceivers for 2 or more flashes, since you need one transceiver as a trigger and one or more transceivers as receivers.

3. Wirelessly trigger studio flashes

Using a PC Sync cable the transmitter can wirelessly and synchronously trigger your studio strobes.Required cables to 3.5mm (1/8"), 6,35mm (1/4")

Package Contents:

           2 × RF-603 Transceivers  
           1 × C1 Shutter release cable 
           1 × user manual 
                 Original Package Box