Hong Kong: Photographic equipment manufacturer Yongnuo have announced a brand new flash trigger, the RF-603. Successor to the internationally popular RF-602 system, the Yongnuo RF-603 series adds the following improvements:
Transceiver-based system: units automatically detect when to switch to either transmitter or receiver mode.
Hotshoe pass-through, allowing on-camera flash and radio triggering to be used simultaneously.
Prontor/Compur (PC) port for off-hotshoe synchronisation
Non-proprietary 2.5mm (sub-miniphone) port for shutter release cables
Like the upcoming Cactus V5, Yongnuo have gone for the transceiver-based format. Pressing the test button on a transceiver will make it a transmitter, while all other nearby units will automatically switch to receiver mode.
The devices have on/off switches and will take 2 AAAs, so you don’t have to worry about running down expensive CR2 batteries as with RF-602s. There will be Nikon and Canon versions (RF-603N and RF-603C) waking up speedlights from sleep mode and providing full TTL pass-through to any on-camera flashes.
The RF-603 system has been confirmed NOT compatible with RF-602 or RF-601. It will have a range of 100 metres and use the 2.4GHz frequency band with 16 channels.
For more information please consult the manufacturer’s product page.
Where to buy
Upon release, the Yongnuo RF-603 Wireless Transceiver System will be available at the manufacturer’s official eBay outlet, including a 12 month warranty, and from other sellers.