du Pont Telescope

The du Pont Telescope is a 2.5-meter optical reflector telescopes at the Las Campanas Observatory in Chile, which began operation in 1977, at which time I suspect it was one of the ten largest in the world. It is a Ritchey-Chrétien telescope with a large field of view (more than 2 degrees diameter), incorporating a Gascoigne corrector, which is analogous to a Schmidt camera's corrector plate, but I believe the du Pont Telescope has a substantially larger aperture than any Schmidt camera. Among the du Pont Telescope's uses has been coverage of the southern hemisphere for the Sloan Digital Sky Survey (SDSS).