Today we visited the Rochester Precision Optics factory. They produce lenses for everything from thermal sights on M16s to focal lenses in the Hubble telescope. After the tour Maria and I worked on making stacks of our images to better display the data collected. We also created 3D images out of the C-Scans by using a color analyzer in imageJ. hopefully these will help display the caracteristics of the paper to the Portuguese paper company.