Thank you guys, I really regard it.
The notes about cardiod mic is fine, sometimes we will shoot on small places, where the cariod could be better but most of the time the shutgan would be better, I guess. Or at least more universal.
I own 2 NTG1 mics, but to be honest, I don't like the sound much. It could be option, but for me is compromise.
And what about he Sanken CS-1e? It's not expensive like Sennheiser but better than NTG.
I just want to be ready to question : "Which microphone do we need to buy?" Because they will also thinking to buy a new camera.