This weekend I was at a local camera store and they had multiple vendors. Among them there was a nikon rep. I checkout the vast majority of the lens. Interesting lineup indeed. Anyways I had the rep connect their nikon microphone to my d800 and let him hear the audio hiss. I know for a fact it is not my mic because I didn't have that issue with the d7000. I read that you have to buy a pre amp but in mind that is not acceptable for a 3000k camera. He said he was going to follow up with Nikon and get back to me. I haven't found any fix online regarding this issue. While I do about 1% video with the d800 it would be nice to have clean audio the 4 times a year that I do choose to record video.
also I forgot to ask him. Why is the D90 still in the lineup? I had that camera and it was nice but hasn't it been replaced already with newer ones?