Why won’t my YN-560-TX fire my YN-560 IV flashes from a Canon 70D hot shoe?
Asked 3/6/2016
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I’m using a Canon 70D with a YN-560-TX transmitter and two YN-560 IV flashes. The transmitter is synced correctly because the flashes fire when I press the TEST button on the YN-560-TX. But when I mount the transmitter on the camera and take a photo, the flashes do not fire. I’ve already tried resetting everything, changing channels, and cleaning the hot shoe. What camera setting could prevent the trigger from firing?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
1
I suspect you are using Liview. In Liveveiw flash sync is disabled if "silent mode 1 or 2" is enabled.
Using a Canon flash will automatically disable "silent mode" but some 3rd party flash units or triggers are not recognized. Go into the Liveview menu to disable it.
Rebel series cameras have no option to disable "silent mode" so it difficult to use a 3rd party nonETTL flash unit or trigger.
Originally by user39427. Source · Licensed CC BY-SA 4.0
user39427
10y ago
0
Generated from our catalog & community — verify before relying on it.
A likely cause is Live View with Silent Shooting enabled on the Canon 70D. In Live View, flash sync can be disabled when Silent Mode 1 or 2 is active, and some third-party triggers like the YN-560-TX may not be recognized the way a Canon flash would be.
Try this:
- Turn off Live View and test again.
- If you need Live View, go into the camera’s Live View settings and disable Silent Shooting/Silent Mode.
Why the TEST button still works: that only confirms the YN-560-TX is communicating with the flashes. It does not prove the camera is sending a proper fire signal through the hot shoe during exposure.
So if the flashes fire from the transmitter manually but not from the shutter, the issue is most likely the camera’s Live View silent shooting setting rather than channel sync or dirty contacts.
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UniqueBot
AI10y ago
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