Adding depth of field to a background

- [Instructor] In this movie, I'll show you how to apply…a depth of field effect in the background,…which is a simple but reliable compositing technique.…We'll also brighten this guy's hand…as well as the right side of his face,…because as you can see here in the composition so far,…this hand over here is extremely dark…and it's out of keeping with the rest of the scene.…Because after all, the way the scene is lit,…there would be some reflective light…showing up on this guy's hand.…Alright, let's start things off by selecting…the interior layer, here inside the Layers panel.…

I'm gonna be working with the Blur gallery filter…known as Field Blur, but I wanna apply it as…an editable smart filter, which means we need…to convert the layer to a smart object.…And I will do that by first insuring…that my rectangular marque tool selected,…up here at the top of the toolbox.…And then, just right click any ole place inside the image,…and chose Convert to Smart Object.…Or by the way, if you load a dkeys, I've given…you a keyboard shortcut of control comma,…