You Can tell your operator to use “Magic Lantern”. It give you light meters/Adjustment, no AGC (But it’s so with the updated firmware) ecc ecc…
I never ask about quality, I ask about this review on B&H:
By Gearhead:
I like a lot, is an excellent for interviews, you’ll hear clear, and for that price is excellent choice. I use it with my 60d and i connect it directly to my cam.
Is it possible that 60D give”energy”to the microphone?
It look technically strange to me, but not impossible.