I just tried mounting my new 580ex flash on an old flash bracket I had. The mount fits yet the flash pins may be just touching the metal jaws of the bracket. I can't fully test the setup because I haven't purchased a cord yet. However, with the flash mounted to the bracket, none of the flash buttons work (including test firing). Once I take it off the bracket, everything works fine. Is this by design (i.e. the flash senses it's on a bracket and is expecting a cord) or do I need a different bracket?
Thanks,
Steven
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