The researcher Walter Torres, Institución Universitaria Digital de Antioquia – IU Digital and Universidad de Antioquia, has spent a stay at CD6 between May 21 and June 3, in order to learn about the capabilities and lines of research of the center and explore future  collaboration. Professor Torres researches in the field of visual optics and currently focuses his research on expanding the dynamic range of wavefront sensors. CD6 has an active line of research, within Project PID2020-112527RB-I00 funded by MCIN/AEI/ 10.13039/501100011033, in the same area of knowledge and both groups have shared ideas to establish collaborations.