I have an external microphone that I've used to conduct interviews in the past with the iPhone, called an iRig, and was wondering how and if I can get it to work with the 5D Mark III. I plugged it in, but I have no audio at all, just white noise.
Here's a link to the microphone. http://www.ikmultimedia.com …ndex.php?pp=irig-mic-info
Can it be used? Do I need an adapter?