Below is a table of our different mirror castings.

    MIRROR CASTINGS  
  Size1 Focal Ratio2 Casting Date3 Telescope/Observatory
1) 1.8 1.0 06/17/1985 Vatican Advanced Technology Telescope
2) 1.2 1.9 11/11/1987 Smithsonian Astrophysical Observatory
3) 3.5 1.75 04/26/1988 Astrophysical Research Consortium
4) 3.5 1.75 12/09/1988 Wisconsin-Indiana-Yale-NOAO
5) 3.5 1.5 06/28/1989 US Air Force Starfire Optical Range
6) 6.5 1.25 04/03/1992 Multiple Mirror Telescope Conversion
7) 6.5 1.25 02/03/1994 Magellan I, Las Campanas Observatory
8) 8.4 1.14 06/10/1997 Large Binocular Telescope I
9) 6.5 1.25 09/15/1998 Magellan II, Las Campanas Observatory
10) 8.4 1.14 05/20/2000 Large Binocular Telescope II
11) 6.5 1.25 04/04/2002 Lockheed Martin Corporation
12) 8.4 2.14* 07/23/2005 Giant Magellan Telescope I
13) 3.8 3.4 08/28/2006 Test Optic, Mirror Lab
14) 8.4 1.2 03/29/2007 Vera C. Rubin Observatory
15) 6.5 1.25 08/26/2009 Tokyo Atacama Observatory
16) 1.2 1.9 09/10/2010 Smithsonian Astrophysical Observatory
17) 8.4 2.14* 01/15/2012 Giant Magellan Telescope II
18) 8.4 2.14* 08/25/2013 Giant Magellan Telescope III
19) 8.4 2.14* 09/18/2015 Giant Magellan Telescope IV (center mirror)
20) 8.4 2.14* 11/04/2017 Giant Magellan Telescope V
21) 6.5 1.25 09/24/2019 To be announced
22) 8.4 2.14* 03/06/2021 Giant Magellan Telescope VI
23) 6.5 1.25 05/07/2022 Multiplexed Survey Telescope (MUST)
24) 8.4 2.14* 09/00/2023 Giant Magellan Telescope VII
  1Meters 2Focal length/diameter 3Casting date *Off-axis segment