Pictured are Mike Skrutskie and J.D. Smith (an astronomer from the University of Arizona who has written most of the data acquisition software for CorMASS) on the observing floor of the Apache Point Observatory's 3.5-meter telescope. The instrument at right is the CorMASS infrared spectrograph positioned horizontally on a lift cart for mounting at an adjacent Nasmyth focus. Taking the picture, and thus not visible, is John Wilson who designed and integrated CorMASS as part of his thesis at Cornell University.