The excellent Omega Tau science podcast recently did an in-depth episode on the not inconsiderable complications of the ELT’s five mirror lightpath and its cont

The excellent Omega Tau science podcast recently did an in-depth episode on the not inconsiderable complications of the ELT’s five mirror lightpath and its control: http://omegataupodcast.net/150-5-controlling-the-elt/ http://omegataupodcast.net/150-5-controlling-the-elt/