The new MMT

D. Blanco, M. Alegria, S. Callahan, D. Clark, B. Comisso, C. Foltz, J. D. Gibson, C. Heller, R. James, W. Kindred, S. King, C. Knop, H. Lester, J. McAfee, A. A.E. Milone, R. Ortiz, T. E. Pickering, P. Ritz, B. Russ, G. SchmidtD. Smith, P. Spencer, T. Trebisky, K. Van Horn, S. West, C. Wainwright, G. Williams, J. T. Williams

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations


Originally commissioned in 1979, the Multiple Mirror Telescope was a highly innovative and successful facility that pioneered many of the technologies that are used in the new generation of 8 to 10 m class telescopes. After 19 years of operations the MMT was decommissioned in March of 1998: the enclosure was modified, the optics support structure was replaced, and a single 6.5-meter primary mirror was installed and aluminized in-situ. First light for the new MMT was celebrated on May 13, 2000. Operations began with an f/9 optical configuration compatible with existing instruments. Work has continued commissioning two new optical configurations that will serve a suite of new instruments: an f/15 deformable secondary mirror and adaptive optics facility that has obtained diffraction-limited images; and an f/5.4 secondary mirror and refractive corrector that provides a one-degree diameter field of view. The wide-field instrument suite includes two fiber-fed bench spectrographs, a robotic fiber positioner, and a wide-field imaging camera.

Original languageEnglish (US)
Pages (from-to)300-311
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 1
StatePublished - 2004
EventGround-based Telescopes - Glasgow, United Kingdom
Duration: Jun 21 2004Jun 25 2004


  • Adaptive optics
  • Commissioning
  • Instrumentation
  • MMT

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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