At f/1.0 again, 1/15s (with IBIS) and just 720 ISO in a dark place, here appearing much brighter (no exposure correction in PP).
Some people say the lens is not sharp, after painfully pixel-peeping through 45MP. Pretty pointless. In the absence of shiny parts, the picture is pretty contrasty and the details look clean.
The second pic was taken at 1.4 : with shiny metal pipes, f/1.0 is less appealing, the LoCA becoming apparent. At 1.4, the result feels more natural.