The first, fully integrated DESI Spectrograph (known as the Engineering Model) is shown residing on it’s optical bench undergoing performance tuning and testing. The testing is being performed by the DESI Collaboration at Winlight SA, Pertuis, France. A light source feeds light into the spectrograph optical system, hidden under light covers and baffles ( black plates), and through the cameras (black cylinders) to be recorded.

Posted in News