I'm wondering how good is the built in mic on the A6000 or any NEX camera? I was researching about the Sony ECM-XYST1M Stereo Microphone and wondered on how does it compare. http://www.bhphotovideo.com/bnh/con...PLxtNekqr8CFc9j7Aody1cApQ&Q=&is=REG&A=details The reason for the interest is that I just sold my Sony Handycam camcorder in order to purchase the SELP18105mm as a replacement. I don't do much video, but there are times that a special event/occasion will require it. Has anyone have any knowledge/experience regarding the built in mic and/or the ECM-XYST1M? Any suggestions or feedback will be appreciated.