2

Yes, and no. :D The 430EXII has no wireless eTTL master capability, just like your T2i, it cannot be used as a master unit in Canon's "smart" optical wireless system, the way your 430EXII can be used as a slave in that system. However, there is one model of Yongnuo flash that can act as an optical master (YN-568EXII), so if you used that on-camera, you ...


2

You need to set it to E-TTL or Manual mode, not to Slave mode. The YN622C-TX and YN-622C combine to create the equivalent of an off-shoe cord. The camera sees the transmitter as a compatible Canon E-TTL flash and the flash sees the receiver as a compatible EOS camera. So the flash is acting just as if it were mounted on the shoe, not as an optically ...


1

If you don't have any additional triggering gear to get the 430EXIII-RT off-camera, then, yes, you have to fire the T6i's pop-up flash to trigger it in optical TTL slave mode. Without firing the pop-up flash, there's no way to tell the off-camera flash when to fire. However, at regular subject distances, you can tell the pop-up flash not to contribute light ...


1

Take the 430EXII out of slave mode. That's for Canon's optical wireless system, and is basically telling the 430EXII not to listen to the signals on the foot pins, but to the red sensor panel on the front instead. And your YN-622C is sending signals via the foot pins. The 622 radio slaving is separate and a different system than the built-in Canon ...


1

Check that the transmitter is seated properly (pushed all the way in) on the camera hotshoe. If the pins and contacts on the foot of the transmitter are misaligned, then the commands can't be communicated. Also, in the camera's menu for flash, disable Wireless. That function is for Canon's optical wireless system. see also: The Other YN622C User Guide, ...


1

Have you followed the instructions in the manual for troubleshooting? Which camera do you have? Are you using Liveview on your camera? Many 3rd party flash or triggers will not work with Canon Liveview. Higher end cameras like the 60D, 70D, 5D, 7D etc all have an option in the camera menu to disable "Silent Shooting" while in Liveview. This allows the ...


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