Seminar
The problems of mounting big instruments on big telescopes and the ELT instrumentation programme

Resumen

This talk looks at the challenges in developing instruments for extremely large telescopes.  It then discusses the impact of these on the ELT first light instruments and their current status.   The instruments are HARMONI, a visible - Near IR integral filed unit; MOARY/MICADO a multi-conjugate AO system and camera and METIS  a thermal IR spectrometer and camera.