When C-AF is engaged, it sounds a bit like a woodpecker when the system tries to focus. My E-PL2 does it and so does my E-PL3... So while new to these cameras, I am certain this is a well known issue. So what is the best workaround? I realize that setting enough DOF and using S-AF will work - but how about an external mic? Do they cut the C-AF noise? Any very simple ones that you can recommend? I'd be looking for a small unit that might clip to the hot shoe and/or a lapel and had good wind damping capabilities. Any help will of course be most appreciated. woof!