LO/MIT Industrial Gallery
Before (L) and after (R), LO/MIT coated on one of the components "in the field of view" of Keck telescope's main aperture, Mauna Kea, HI. Keck's twin 10m telescopes are the world's largest optical and infared observatories.
W.M. Keck Observatory | Mauna Kea, HI, USA www.keckobservatory.org