Digital camera outsole

I really don't know the outsole, but I also know two kinds of cameras that can blur the portrait background to the extent you said:

Canon 5D2 Nikon D3X, these two models are very virtual whether you match a dog head or a cow head.

But the price may be a little expensive. You can check it.

The meaning of blurring the background is to stretch out a finger and put it in front of your eyes. Look carefully, and then look carefully. Become blurred.