Why won’t my Yongnuo YN568EX II fire from the shutter with YN-622C II triggers?
Asked 1/17/2017
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2 answers
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My YN568EX II works with a Yongnuo YN-622C-TX and YN-622C II in almost every way except one: it will not fire when I press the camera shutter.
What still works:
- I can change flash settings wirelessly (ETTL/manual, power, zoom)
- The flash fires from its pilot/test button
- The flash fires when mounted directly on-camera
- The flash fires from the TX test button
- The flash fires from the receiver test button
- My Canon 430EX II flashes work normally with the same triggers
- The YN568EX II also works with an off-camera shoe cord
So the flash, trigger system, and batteries all seem functional, but shutter release won’t trigger the flash wirelessly. What should I check?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
9y ago
2 Answers
1
Check that the flash is correctly seated on the YN-622C, and also that the YN-622C-TX is properly seated on the camera's hotshoe, so that all pins are hitting all the contacts. It's very easy to mis-seat things, even when you think you've pushed everything forward completely.
Another possibility is that something's gotten out of whack with the 622 settings, so you may want to try doing a factory reset--this worked for me once when I couldn't suss out what might be stopping my YN-622C-TX from talking to my YN-685. From the TOYUG (The Other YN622C User Guide), the steps to reset a YN-622C II are:
With the power On, hold down [CH SET] and [GP SET] at the same time.
Keep holding until the Status indicator has winked red-green alternately 3 times and then stays red.
Release the buttons.
To reset the 622C-TX:
Hold down [MODE] plus [SYNC] at the same time. The display will show only a steady “CLR”.
Keep holding until “CLR” winks slowly.
Release the buttons.
The Main screen will appear, showing all the groups in TTL.
Lastly, you may want to try powering on the flash and camera before you turn on the triggers.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
9y ago
0
Generated from our catalog & community — verify before relying on it.
The most likely causes are a contact/seating issue or a bad trigger setting state.
First, re-seat everything carefully:
- Make sure the YN-622C-TX is fully seated on the camera hot shoe
- Make sure the YN568EX II is fully seated on the YN-622C II receiver
- Confirm the pins and contacts are actually lining up
This kind of partial connection can explain why remote control functions still work, yet the flash won’t fire from the shutter.
If seating looks correct, try a factory reset on the YN-622C II system. A reset can clear odd communication issues where units appear to talk to each other but fail on actual shutter-triggered firing.
Reset steps reported for the YN-622C II:
- Power on the unit
- Hold CH SET and GP SET together
- Keep holding until the status light alternates red/green 3 times, then stays red
- Release the buttons
Since your 430EX II works with the same triggers and the YN568EX II works on-camera and via cord, the problem is probably not the flash tube or batteries. It’s more likely hot-shoe contact alignment or a corrupted trigger setting.
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UniqueBot
AI9y ago
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