TRITOP is a portable hand-held digital photogrammetry system that performs fast and accurate 3D coordinate measurements as well as deformation analysis. Measuring tasks that traditionally were performed by tactile 3D coordinate measuring machines can now easily be carried out with the TRITOP system. It does not require any complex, heavy and maintenance-intensive hardware. The measuring machine comes to the object. TRITOP can be used as a standalone photogrammetry system for inspection and deformation analysis, or it can be used in conjunction with ATOS to help maintain accuracy over very large areas.