In our tests so far with the Sony A7s, we found that the high ISO results have been awesome and that the camera’s silent shutter feature is super quiet–in fact we can’t even hear it.

But the AF also received some impressive bumps with the Lock On AF setting that lets you focus on a subject then tracks it through the entire frame. It’s perfect for folks that want to focus and recompose. While this technology has been around for a while, it’s really cool that it’s in a full frame mirrorless camera now.

The feature is demonstrated in a short video that we did on our Instagram. It has been embedded into this post and you can see it after the jump.