Tim Harris takes a look at how you can add some extra functionality to the standard After Effects Camera Lens Blur when using it in conjunction with a depth map. You are able to set a blur map in the Camera Lens Blur that can control what areas are in focus, and here Tim shows how to add some custom controls that will allow you to simply sample the parts of the image that you want to be in focus, rather than relying on several Camera Lens Blur controls.