Different gratings, each one covering a part of the visible and infrared range, on three different cameras were available to this spectrograph. The cameras were equipped with photographic plates as detectors.
The Coudé Spectrograph was decommissioned from the ESO 1.52-metre telescope in mid 1980s.
The Coudé Spectrograph technical specifications
This table lists the global capabilities of the instrument. The authoritative technical specifications as offered for astronomical observations are available from the Science Operations page.