I've been struggling with my 430ex flashes and TT5 receivers with limited or no range. After installing the RF protection sock, it works great. I hate that I have to use flash halfway, but that's Canon's fault, not Pocket Wizard's. Great product, easy to use and storage is not a problem as it is fabric and you can take it anywhere. Also, it is VERY durable. There's nothing cheap about that.
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