Excerpt: Had a lot of high pitched background noise (hiss) on my D800. The in camera mic had less. May not be a problem with the mic per se. The D800 is a camera not a quality audio recorder. I might try another mic. Aside from the noise the sound quality was pretty good.
Excerpt: Before I purchased this product, I saw a pattern of two concerns in the product reviews: the mic was non-directional and there was noise generated by operating the camera. To address these, I purchased a 10' Rhodes extension cord and mounted the mic on a table tripod.
Pros: Easy To Use, Improves Performance, Quality Construction