Now, we can darken the Background based on the distance each PIXEl is from the camera by adding-in a Fog node. Fusion easily lets us "eyedrop" both the Near and Far Planes in our image window, assigning the level of effect each PIXEl's Z-Buffer value will allow for the addition of the Fog Color. We then set the Color and Opacity of our "Fog," and how smooth the transition will be from "Fogged" to "non-Fogged," with the Z Scale slider. (It now looks like we spent a lot of time "noodling" our lights to get this kind of fall-off in our scene, preserving the delicate rim/kick lighting we've got on the props!)

Next, we add in a Depth Blur node, where we can "eyedrop" a focal-point in the image window, adjust the Blur Size, and then massage the softness of the transition between in and out of focus areas with the Depth Of Field and Z Scale sliders. And we get something in moments, that looks like we spent hours calculating with LightWave's "physically correct" DOF settings.