Yongnuo RF-603 II C3 Wireless Flash Speedlite Trigger Transceiver (Pair)

The new RF-603 II is the Mark II improved version of the RF-603. It 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 unit can be used flexibly as trigger or receiver. Only 2 AAA batteries are required to power 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 has a working range of up to 100m. The synchronisation speed can reach to 1/320, depending on the situation it may reach to 1/250 or less.

A set consists of two equal transceivers. Both of them can act as a receiver as well as a transmitter. It can trigger one flash with one set, since one serves as trigger and one as receiver. You can also buy additional transceivers to trigger two or more flashes at the same time.

C3 Version:

Canon 1D / 1DS / 5D / 6D/ 7D / 50D / 40D / 30D / 20D / 10D

Improved features:

• Hot shoe locking system to prevent from slipping off
• Switch on side for easy operation
• Enhanced self-detecting system

Functions:

Remote Shutter Release

• Wireless Remote Shutter Release (On camera)— You can mount one receiver into the camera and connect it with the camera via the 2.5mm shutter connecting cable, and can remote control the camera with other receiver. You can use it to fulfill the function of Auto-Focus, Continuous shooting, Long Exposure, Half-Way, Pressing, Full-way Pressing and Bulb.
• Remote Shutter Release (off Camera)— You can use the single receiver to fulfill the function of remote shutter release after you connect it with your camera via the 2.5mm cable.

Flash Trigger

• To fire a Flash Speedlite — one receiver can fire one flash speedlite, one set of RF-603 can control two Flash Speedlites at the same time.
• To fire a Studio Strobe light — An additional 3.5mm/6.35mm cable is sold separately.