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| p.1 #13 · Pocketwizard Question (plugging into cameras PC port) |
Jess Edward wrote:
Is it the flash on the receiving end that causes the problem? I have a Canon 540EZ I can use as the remote flash if the off camera 580EX II is causing the issue.
Yes, it's the flash at the receiving end, which is why you can cure the problem by putting an RFI shield on the receiving Speedlite, or using a longer cable between the receiver and the Speedlite, or re-orienting the antenna of the receiver.
But it ONLY affects the FlexTT5, not the Plus II radios. It's due to the more-complex signaling needed for ETTL/iTTL control. People have been using the Plus IIs for years without RFI problems from the exact same Speedlites that fail when used with the FlexTT5s.