Short video showing the new CameraTracker feature in Red9 StudioPack v1.29. This is a very simple bit of code that utilizes the standard Maya viewFit calls, the same thing that happens when you hit the 'F' key on a view, but over time. It uses the current active panel and the current camera in that panel and tries to frame the selected objects, per frame. The step is adjustable in the option box.
Really simple but very, very useful in production to focus in on the things you're animating.