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. The Sloan Telescope was partially based upon the du Pont Telescope, and among the du Pont Telescope's uses has been coverage of the southern hemisphere for the Sloan Digital Sky Survey (SDSS).