Sorry Paul, I thought you could see the EXIF info if you clicked on the photos but if I log out, I see that you can't
All shots in that post were with a tripod, ND8 filter, ISO 100
In the order of the three posted:
1. F16, shot at 16 mm, 16 seconds
2. F22, shot at 12 mm, 32 seconds
3. F22, shot at 12 mm, 26 seconds