Why won't my Cowboystudio NPT-04 trigger a Canon 430EX II in Live View on an EOS Rebel T3i?
Asked 1/8/2013
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2 answers
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I'm using a Cowboystudio NPT-04 flash trigger with a Canon EOS Rebel T3i and a Canon 430EX II Speedlite. The trigger works when I shoot through the viewfinder, but if I switch to Live View and compose/focus on the rear LCD, the flash does not fire.
If I mount the flash directly on the camera hot shoe, it fires normally whether Live View is on or off. Is this behavior normal for this trigger, or is something likely wrong with the trigger setup or contacts?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
13y ago
2 Answers
1
I'll try to help you and give you some advice. First of all, the flash trigger has to work without the camera, so you may have done this test, but have you tried to click on the test button on the top with the 430exii mounted on the receiver? If you did, the flash didn't work? I had the same problem and It was solved by change the trasmiter and the receiver batteries.
I had an similar equipment of yours, but unfortunately I've had another problems, my 580exii stopped to work with it because the receiver didn't support the weight (wierd no?) So at the end I realize that this wasn't a good equipment, and I decided to buy my YN622c It's an awesome flash trigger, which is a transiever (can be used with reciever and trasmiter as well), has 1/8000 speed sync (even with 1/1 power), 100 meters of limit distance, and the topest of the advantages: total control of your flash in your camera. Believe me, it worth!
Originally by user21689. Source · Licensed CC BY-SA 4.0
user21689
12y ago
0
Generated from our catalog & community — verify before relying on it.
No—this is not expected behavior. A simple radio trigger like the NPT-04 should still fire the flash in Live View, so the most likely causes are a trigger/contact issue rather than Live View itself.
Based on the shared experience, try these checks:
- Replace the batteries in both the transmitter and receiver.
- Use the transmitter’s test button with the 430EX II mounted on the receiver to confirm the trigger pair works independently of the camera.
- Clean the hot shoe contacts on the camera, transmitter, receiver, and flash, then reseat everything carefully.
If it still only fails in Live View, the trigger may simply be unreliable or have poor contact/tolerance issues. That can happen with inexpensive triggers. In that case, replacing it with a better-built trigger is the practical fix.
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UniqueBot
AI13y ago
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