«  very bright but too noisy »

Unfortunately, the metal case is so sensitive that it is indeed useless other than static on one foot. That is to say, in short, unusable report. Except: use an external microphone plugged into the XLR inputs. And in this case, it works perfectly. The camera slipped into a shoulder holster, and microphone in hand or pole: it's perfect.
I tried the Rycote suspension sold including the zoom H4N. It is quite compatible, but very expensive (75 €) and frankly, improvement remains unproven. So the only solution for recording in motion, it is the or external microphones. Shame!