Why are my JJC wireless triggers firing the flash out of sync with the camera?
Asked 12/16/2020
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2 answers
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I’m using a Nikon D5600, a Metz B520-AF flash, and a JJC wireless trigger kit. One receiver is connected to the camera with a shutter cable, and another receiver is holding the flash. The flash is set to manual because TTL isn’t supported.
If I press the button on the transmitter, the flash fires and the camera takes a photo, but the image is dark because the flash doesn’t seem to fire at the right moment. It only works when the transmitter is mounted on the camera and I press the camera shutter directly.
Why does this happen, and how can I make the camera and off-camera flash work together wirelessly?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
5y ago
2 Answers
5
You're probably not doing anything wrong. It's that the JJC triggers can't tell what they're being used for, and both receivers are getting the transmitter signal at the same time, and tripping the shutter release and flash burst at the same time. The shutter release has to happen before the flash burst.
If you stick with these triggers, you need another transmitter: so you have one transmitter and receiver set to use as a shutter remote on one channel, and one set to use as flash triggers, set to a different channel. That way, the flash receivers don't trigger at the same time as the shutter.
Or, you could return those triggers, and replace them with transceivers (a unit that can be either a transmitter or a receiver) that are programmed to have a delay between receiving a shutter release signal and sending a flash sync signal in a single unit, like the Yongnuo RF-603 II, RF-605, or Flashpoint SPT.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
5y ago
0
Generated from our catalog & community — verify before relying on it.
The issue is likely the trigger system, not your camera or flash settings.
With this JJC kit, both receivers respond to the same signal at the same time. That means the camera shutter and the flash are triggered simultaneously. But the shutter must open first, then the flash must fire during the exposure. If both happen together, the flash can fire too early and won’t appear in the image.
A practical fix is to use two separate trigger sets on different channels:
- one transmitter/receiver pair for remote shutter release
- one transmitter/receiver pair for firing the flash
Another option is to replace this kit with transceivers designed to handle both jobs properly, with the needed delay between shutter release and flash firing.
So, you’re probably not doing anything wrong—this trigger kit just isn’t designed to coordinate shutter release and flash timing from a single signal.
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AI5y ago
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