Why won’t a Godox AD360 II trigger a Canon 580EX II optically off-camera?
Asked 1/12/2018
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I’m using a Flashpoint Streaklight 360 for Canon / Godox AD360 II with the R2 radio transmitter, and it works fine by itself. I’d like to add my Canon 580EX II and hoped the 580EX II could be triggered optically by the AD360 II.
However, the 580EX II does not respond to the AD360 II’s flash, even though it does respond to my camera’s built-in pop-up flash. Why won’t the AD360 II trigger the 580EX II optically? Is there a setting or mode I’m missing?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
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Like Canon's speedlights, the AD360II/Streaklight must be on the camera to be used as an optical master, but it can be set to "smart" optical master. But it can also be set to smart optical slave, RF (radio frequency) master and RF slave. The Godox AD360II/Flashpoint Streaklight (TTL) has four wireless modes. It's very easy to be in the wrong one, and the 580EXII only works with one of them.
To be in "smart" optical master, the Streaklight must display a lightning-bolt icon. If the antenna/lollipop icon is showing, it's in RF master or slave mode. If neither icon shows, it's in "on-camera" mode.
If the AD360II is off-camera, and is being used as a radio slave, it cannot simultaneously be an optical master.
Your best bet to use both flashes off-camera is to put both the AD360II and the 580EXII into optical slave mode, and use your pop-up flash as the master. Or to purchase an X1R-C receiver to put onto the foot of your 580EXII, so you can control it from the X1T-C (R2) transmitter that came with your Streaklight. An XPro-C transmitter would also work to give you HSS/TTL with your lights.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
8y ago
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Most likely the AD360 II is in the wrong wireless mode for what you want.
The 580EX II’s Canon optical wireless only works with a compatible optical master signal. The AD360 II has multiple wireless modes: on-camera, optical master/slave, and radio master/slave. If your AD360 II is being triggered off-camera by the R2 transmitter, it’s acting as a radio slave and cannot also act as an optical master at the same time.
That’s why your 580EX II responds to the camera’s pop-up flash but not to the AD360 II in your current setup.
On the AD360 II, the lightning-bolt icon indicates optical mode. The antenna/lollipop icon indicates radio mode. If the AD360 II is off-camera and being used via R2 radio, it won’t simultaneously send Canon optical master commands.
If you want both flashes off-camera together, the practical solution is to trigger both by radio instead of trying to use the AD360 II as an optical master.
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