![[Cleaning of M1]](../../publications/news/14/14bev50.gif) | Aluminizing operation have taken place at the UK William Herschel Telescope. Here the careful cleaning of M1. |
| After thorough drying the mirror is being lifted inside the tank. | ![[Drying of M1]](../../publications/news/14/14bev40.gif) |
![[Support inside the tank]](../../publications/news/14/14bev60.gif) | Inside the tank a special support has been fixed to hold the convex bottom of the TNG primary mirror. |
| Positioning of the mirror inside the vacuum tank. | ![[M1 in the tank]](../../publications/news/14/alum2.gif) |
![[M1 aluminized]](../../publications/news/14/14bev80.gif) | Aluminization has been completed. From left: Paolo Conconi, Piero Rafanelli, Dave Jackson. |
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