  METIS is one of the three first-light instruments planned for the ELT, mainly
dedicated to high contrast imaging in the mid-infrared. On the SPHERE
high-contrast instrument currently installed at the VLT, we observe that one of
the main contrast limitations is the wind driven halo, due to the limited AO
running speed with respect to the atmospheric turbulence temporal evolution.
From this observation, we extrapolate this signature to the ELT/METIS
instrument, which is equipped with a single conjugated adaptive optics system
and with several coronagraphic devices. By making use of an analytic AO
simulator, we compare the amount of wind driven halo observed with SPHERE and
with METIS, under the same turbulence conditions.
