ComCam Engineering Test Image

A good comparison of the ComCam engineering test camera with the LSSTCam can be seen in the figure. The two have the same resolution and sensitivity, but the LSSTCam covers 21 times more area on the sky in every image. A single test engineering image from the very first night of the ComCam campaign, before any detailed tuning or more precise alignment of the optical system, is shown in the context of the coverage that will be provided by the LSSTCam: every one of the 21 squares in the teal wire frame is equivalent to another ComCam, all observing the sky at the same time. As ComCam already covers an impressive area equivalent to two full Moons, the promise of the full LSSTCam is incredible.