How can I trigger a Canon 430EX II off-camera with CyberSyncs on a 5D Mark II?
Asked 6/30/2016
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I want to use a Canon 430EX II off-camera with a CyberSync transmitter on a Canon 5D Mark II and a CyberSync receiver connected to the flash via a hot-shoe adapter/PC sync cable. The flash is currently set to Manual, but it is not firing reliably. Does the 430EX II need a specific flash mode or setting to work with radio triggers, and are there common compatibility checks I should make?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
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Simply having the 430EXII in Manual mode isn't sufficient. It must also be out of slave mode. The slave modes for the 430EXII are for Canon's wireless eTTL optical-based system. Your Cybersync triggers are replacing that system, and using the PC sync port to trigger the flash. If the 430EXII is in Slave mode, it's only listening to the optical sensor under the front red panel and not listening to the foot of the flash or the PC sync port.
Otherwise, the system should work as you envision. For basic troubleshooting, check the following things:
Make sure all your batteries (flash, triggers, and camera) are good.
Make sure both triggers are using the same channel/group. Use the test button to see if the radio triggering is good between the triggers.
Make sure the flash is set to M mode and out of SLAVE mode. (You cannot use eTTL, 2nd curtain, or HSS with Cybersyncs, which are manual-only triggers).
Make sure the PC cable and its connectors are good. A screwlock PC cable is probably the best to make sure the connection with the flash is secure.
When putting the transmitter unit on the camera, make sure it's fully seated forward into the shoe.
Make sure your shutter speed is at or below your camera body's sync speed (1/200 for the 5DMkII; you may need to lower to 1/160s if the radio triggers add enough of a propagation delay to the signal.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
10y ago
0
Generated from our catalog & community — verify before relying on it.
Yes, this setup should work, but the 430EX II must be in Manual mode and not in Canon wireless Slave mode. On this flash, Slave mode is only for Canon’s optical wireless E-TTL system, and when Slave mode is enabled the flash listens to its optical sensor instead of the shoe/PC sync connection.
Set the 430EX II so the slave/channel indicators are off, then select M on the flash. If needed, press and hold the Zoom button until the slave symbols disappear, then use the Mode button to return to Manual flash mode.
If it still does not fire, check the basics:
- transmitter and receiver are on the same channel/group
- the radio link works via the test button
- batteries in camera, flash, transmitter, and receiver are good
- the hot-shoe adapter/PC sync connection is secure
So the issue is most likely not a fundamental incompatibility, but that the flash is still in optical slave mode or the trigger setup needs basic troubleshooting.
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