With our background plate in the can, it's now up to the animatics boys. For our typical animatic shot, computer-generated elements will have to be carefully combined with the live-action photography in our background plate. The live-action footage is digitized into the computer, and a computer world is then set up to match the world seen in the video, so that all the elements will mesh correctly. We start by matching the computer's virtual lens to the camera lens, ensuring that perspectives and angles will look the same for the CG elements as for the real shot. In this case, we knew that our lens was a 50mm, and so that is quickly programmed into the computer.

There are many filmmaking and storytelling reasons for particular lens choices. For example, a long (telephoto) lens can give the effect of compressing both space and time.