I have Meta35 -- comes with a dongle and a connector for the remote port on the front of this gen cameras so you can plug them into a USB port. And software.
Works with the F6, F100, F90/N90, and F5.
With the F100 I was able to set up all the CSM settings with the Meta35 software, which is nicer than on the camera where you don't get any reference information. I can't do that with the F6, for some reason.
The software also lets you DL the exif and then attach it to your scans, which is what I have been doing with the F6. That's the main thing I have it for, setting up the customs settings with the F100 was just kinda a cool extra.
IT isn't cheap. Software is kludgy, and the exif editing is limited. And a little obnoxious. And some things it does just bug me (I can't get it to stop adding meta35 to my keywords, which is BS, so I have to manually delete it after). But it sure helped me learn about film stocks knowing which shot was which in a bracket, and precisely how I metered. I'm bad at taking notes while shooting so it really has been nice for that.