I googled this issue and found this forum. I googled it, because my dog starts barking and whining any time I use my Canon around him. Tonight, I was down the hall and in another room (I was in a back bedroom and my dog was lying in the kitchen). I was taking photos of my baby and my dog started whining and barking just like he does any other time I use the camera around him! I went out and checked, and he was still lying down in the kitchen, but looking unhappy. This really does exist, I swear. I'm using L series lenses, in case that makes a difference.