A quick mic test between the Canon XA 10 onboard mic, the Sennheiser MKE400 shotgun mic , and the RODE NTG-2 shotgun mic.
I tested these because I happen to have them. Just wanted to see how good the onboard mics were. It turns out they were quite good! Relatively speaking. Listen and judge for yourself. You'll need some decent headphones or speakers to hear a clear difference. Especially the low end.
My conclusion was that I preferred the onboard mic over the Sennheiser, surprise! The Sennheiser just sounded thin and lack in low freq response. The RODE had the best low freq response of the three. However it sounded a little more muffled compared to the other two at the high end. It may have been because it was pointed closer to the mid range speaker, although the tweeter was very close above it.
If I had to rate them, I'd say RODE, onboard, and Sennheiser.
Let me know what you think or your own experience with these mics. Thanks for watching!