I am looking for feedback about the built-inl mic on the GX7. I am interested in how it records in a video interview situation 6 - 12 feet away from the subject, both indoors and outdoors (where there can be wind). This camera would be in addition to a fully rigged GH3 (and GH4). I am looking for a camera that I can carry easily and use with the O17 or P12-35. I am concerned, however, about the lack of a mic input. Edit: yes I know the G6 has the option of an external mic.