This is an "as is" 3200 iso. No noise rework has been done on it.
Now, is the sensor of the NEX-7 a noisy one? Yes, he is, but opposed
to what most of us might think, he has no color noise up to 3200 iso.
Look this crop in full size and you will see that noise is limited to
luminance noise only. No mic of red, blue and green dots is found,
thus it is easy to reduce that noise to nuts.