Installation work for the Zerodur mirror

Lifting the cell that will support the first 8.2-m Zerodur mirror with the special handling tool in the Mirror Maintenance Building. This is done to insert various pieces of equipment into the central hole, just in front of the Cassegrain focus. Later, the concrete dummy mirror is placed in the cell and various handling tests performed. Finally, just before the moment of First Light, the real mirror was inserted. (Photo obtained on January 30, 1998).