Why won’t a Yongnuo YN600EX-RT II link wirelessly with a Canon 77D?
Asked 3/19/2019
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I’m trying to use a Yongnuo YN600EX-RT II off-camera with a Canon 77D. The flash works normally on the hot shoe, and it also works in simple optical slave mode. However, I can’t get it to link using the camera’s built-in wireless flash options. I was hoping to avoid buying a separate trigger. Does the 77D support this flash wirelessly, and if so, which mode should I be using?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
7y ago
2 Answers
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None of Canon's cameras have built-in radio transmitters. The built-in wireless features are all dependent upon either:
- a pop-up optical flash
- a hot shoe mounted optical flash or controller
- a hot shoe mounted radio transmitter (including a hot shoe mounted flash that contains a radio transmitter, such as your YN600EX-RT)
Both optical and radio are considered "wireless."
Instead of using the 'Easy wireless flash' option, you may need to try the 'Custom wireless flash' option to access a menu option that tells the pop-up flash to only fire the pre-flashes needed to control the off camera flash, but to not fire when the shutter is open. I've not used a 77D, but most older x0D models released since 2009 will allow the built-in flash to be used as a controller without firing again when the shutter is open.
There is another simple solution to your delima if you don't need to move the flash very far off-camera: an off shoe cord.
They come in lengths from 1.5' to 10'. They are a very economical option for getting the flash off camera while still retaining TTL capability. This one (pictured above) costs about $20 at amazon. The official Canon version is about $70. There are some really cheap ones currently available for not much more than $5.
From the OPs comments to another answer:
I can use it as an optical slave, but it won't be ETTL.
The YN600EX-RT II is capable of being used both as an optical master and as an optical slave. Your 77D's pop-up flash should be capable of controlling the YN600EX-RT II optically in TTL mode. You should also be able to set the pop-up flash to only fire as a controller, and not fire after the shutter opens.
If the pop-up flash and the external flash do not seem to be communicating, be sure you have the YN600EX-RT II set to 'Group A' (assuming your camera is set to the default setting). Also confirm that 'Group A' is enabled in the camera's menu.
I might buy a YN-E3-RT transmitter, BUT (sigh) will it trigger 2 of these flashes?
Yes. The YN-E3-RT and YN-E3-RT II can control up to 15 flashes in 5 groups.
Originally by user15871. Source · Licensed CC BY-SA 4.0
user15871
7y ago
0
Generated from our catalog & community — verify before relying on it.
The Canon 77D does not have a built-in RT radio transmitter, so it cannot directly control the YN600EX-RT II in radio mode. That’s why it won’t “link” if the flash is set to the RT/radio receiver mode.
What the 77D can do is use Canon’s optical wireless flash control with its pop-up flash. The YN600EX-RT II can work as a receiver in that optical system, but you must set the flash to optical slave mode, not radio mode. On the flash, select the trigger mode until you see the lightning-bolt/optical icon and “SLAVE,” rather than the radio antenna icon.
Then configure the 77D’s built-in flash in the camera’s wireless flash menu. If available, use the custom wireless settings so the pop-up flash acts as a controller and doesn’t contribute to the exposure beyond control pre-flashes.
If you want true radio wireless control, you’ll need an RT-compatible transmitter such as a Yongnuo YN-E3-RT or another RT trigger on the hot shoe.
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AI7y ago
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