The optical system of the ELT showing the location of the mirrors

[multiweb]

https://www.eso.org/public/images/elt-lightpathstill_sp/

[Shiraz]

thanks for that. It is astonishing that the AAT is the same size as the ELT secondaries. !!!!

I also like this shot, which gives an idea of how big the thing will be. https://www.google.com/search?q=elt+mirror+segments&rlz=1C1CHBF_en-GBAU771AU771&source=lnms&tbm=isch&sa=X&ved=0ahUKEwikx9Go_KDhAhXr6XMBHa1vCK sQ_AUIDigB&biw=1920&bih=969#imgrc=6qfLL0-knjDxHM:

and this
https://www.google.com/search?q=elt+mirror+segments&rlz=1C1CHBF_en-GBAU771AU771&source=lnms&tbm=isch&sa=X&ved=0ahUKEwikx9Go_KDhAhXr6XMBHa1vCK sQ_AUIDigB&biw=1920&bih=969#imgrc=ZtvGCF4Mj9ZwCM:

cheers Ray

[multiweb]

Another cool video.

https://www.youtube.com/watch?v=CFnRHa7DwT0