Very good mic 1

Sound recording is good, faithful, stronger than the D5100's internal microphone and stereo!
The sounds of the auto-focus are lessened but do not expect miracles: they are always present!
Moreover, the advantage of this microphone is that it works without batteries!
I took the opportunity to use it as a camcorder: still a very good sound.

For cons, I'm scared for the cord that seems fragile. Do not kink every way!

At this price do not hesitate!