The Advanced Camera Tools plugin lets you work with real-world cameras in your SketchUp Pro 8 models. Cameras you create with the ACTs provide precise controls for settings like Focal Length, Aspect Ratio and Image Width, which allows you to accurately preview real camera shots right inside SketchUp.
Here's a video showing the plugin:
here’s some of what you can do with the Advanced Camera Tools:
Position and aim your ACT cameras using familiar moves like Pan, Tilt, Roll, Dolly, Truck and Pedestal.
Toggle on and off all of your ACT cameras’ frustums to clearly see what is—and isn’t— visible in your shots.
The Advanced Camera Tools work on both Windows and Mac computers running SketchUp Pro 8. The plugin itself is a free download; you can get it here: Windows | Mac OS X
Via Google Sketchup Blog