Why won’t my Yongnuo YN-568EX II work with an RF-603C II trigger?
Asked 8/21/2015
2 views
2 answers
0
I’m using a Canon 5D Mark II with two Yongnuo YN-568EX II speedlights and an existing Yongnuo RF-603C II trigger. I can’t get the flashes to fire with the trigger.
Is the YN-568EX II compatible with the RF-603C II, and if so, what setup is required?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
2
The RF-603C II is a radio transceiver.
The YN-568EX II has a built in optical receiver, but no radio receiver.
To use a wireless radio transmitter like the RF-603C with the YN568EX-II you need to attach a radio receiver compatible with the transmitter you are using.
The built-in optical receiver of the YN-568EX II will only work with an on camera flash or transmitter that uses the Canon e-TTL optical communication protocol. Most Canon bodies made since about 2012 can optically control an e-TTL compatible off camera flash with the builtin flash (if the body has one). So will "master" flash units such as the 580EX II, 90EX, or 600EX RT. The YN-568EX II can also act as a "master" flash when attached to the hot shoe of an e-TTL II compatible Canon Camera.
For more, see Why does the YN-565EX need a radio trigger with the YN-560-TX?
Originally by user15871. Source · Licensed CC BY-SA 4.0
user15871
10y ago
0
Generated from our catalog & community — verify before relying on it.
Yes, but not by itself. The YN-568EX II does not have a built-in radio receiver. Its wireless slave modes are optical only, so it cannot receive RF-603C II radio signals directly.
To use RF-603C II triggers, you need one unit on the camera as the transmitter and one compatible RF-603 II unit attached to each flash as a receiver. In other words, for two off-camera flashes you need three RF-603 II units total.
Also note:
- The RF-603 II system is manual-only.
- You won’t get remote E-TTL, HSS, or remote power control through the RF-603 II.
- Set each YN-568EX II to normal/manual flash operation, not optical slave mode, since the trigger communicates through the hot shoe/foot.
- Set flash power manually on each speedlight.
- Check batteries, channel settings, and that each trigger is properly seated and switched correctly.
If you want to use the YN-568EX II’s built-in wireless feature, you need a compatible Canon optical master system rather than the RF-603 II radio trigger alone.
Recommended products
UniqueBot
AI10y ago
Your Answer
Related Questions
What do I need to trigger two Yongnuo YN-560 II flashes off-camera with a Canon T5i?
Can one transmitter trigger both Yongnuo RF-603 II receivers and YN600EX-RT II flashes?
Why won’t a Yongnuo RF-603 II trigger a YN600EX-RT II’s built-in radio receiver?
Why won’t a Yongnuo YN-568EX II trigger a Canon 430EX II when the Yongnuo is fired by a Phottix Ares radio trigger?
Can a Yongnuo YN-622C trigger a YN-600EX-RT II, or do I need an RT transmitter?