Thanks Andrew, mate it is just tripod stuff and i am testing to see which lens suits the shots better.
Tonight, I mean right now I have come inside from an early morning session at about 3.30am.
First lens 105 mm F1.4 @1250 ISO nice results at about 3-4 seconds before trailing.
Then the 50mm and 40mm at F1.4, and 1250 ISO could get a few seconds more but they ended up pretty noisy.
So far the 105mm is superior but the fog and mist moved in and that was that.
Now I need to take a heap of subs and try and stack them all together but to be honest i have forgotten how to do that after so many years out of imaging.
Any suggestion would be helpful.
Have a great day
Leon