 Most modern research telescopes can be configured into a Nasmyth telescope (i.e.to use the "Nasmyth Focus").The twin 10-meter telescopes at W. M. Keck Observatory in Hawaii and the 8.2-meter Subaru Telescope sited next to them support an array of specialized instruments on Nasmyth platforms, with a similar design being used for the future Thirty Meter Telescope.