I recently shot a number of artifacts using RTI from the Grand Canyon National Park's Museum Archive, using a system essentially identical to the one whose build I'm documenting here. You can get a feeling for what RTI can do by viewing some of these artifacts at the American Southwest Virtual Museum. The web viewer doesn't have all the advanced viewing capabilities of the standard RTIViewer software, but it does demonstrate the simple power of RTI - how being able to manipulate just the lighting angle can reveal surface details that a standard photograph can't.