Ricoh Co has released the IR (infrared range) camera PENTAX 645D IR. This camera can capture infrared thanks to the placement of a visible light cut filter on the lens. An invisible drawing in a lower, hidden layer of an old painting can be captured through the surface layer. You can see draft drawings, or what a painter originally imagined and sketched, which would normally be impossible to see.
The camera is a great solution for cultural property management. It allows you to see the condition of the object at the beginning, and the process of changing over time. The camera is designed for research companies, museums, libraries and specialized law enforcement units such as CSI units. You can also take a regular, non-IR photographs with an optional visible light filter.