Hi Wolfgang,
I see that a Nikon D3 camera profile is available but not the D3s.
The list is here at the bottom of the page:
http://www.ddisoftware.com/qimage-u/tech-raw.htm.
The camera profiles for QU are custom, you can make one yourself using Mike's Profile Prism which comes with an IT8 target.
If you do not own Profile Prism but have an IT8 target, Mike will make the profile for you and then offer it to all other QU users.
There are special instructions for photographing an IT8 target to make a camera profile, so if you plan to go down this route, email support and ask Mike for those instructions.
Terry