Just a random thought but...
I've only ever owned Nikon DX bodies until now and was pleasantly surprised when I took my first shot with my D800.
Also, today Yodobashi Camera (Shop) had a demo of the new mark III out.
I know many haven't had the chance to try both yet, but if you'd allow me to ask a noob question.
Even though both are full frame, they sound completely different, at least to me.
Are camera makers able to manipulate the sound each camera makes?
Nikons sound more "aggressive" vs Canons "mechanical" sound.