Color Space and Color Mode confusion

From what I understand,

Adobe RGB Colorspace uses *only* Mode II, no other.

 

Colour mode is the way to map colours into colour space   Switching colour modes is much like going from one type of film, which is designed for portraits, to another type of film, designed for landscapes. Nikon suggested colour modes to be used when little to no postprocessing will be done to the image.

 

Thom Hogan had a ncie explanation of this on DReview

I quote:
"wilkman wrote:
> I just noticed something playing with color ..... since the d2x has
> both a color space menu, and a color mode menu, there are 3
> different ways to set adobe color space II. Modes 1, 2, & 3 which
> all vary in actual color saturation. Color space sRGB I, has 2
> modes, 1 & 3. So five ways to set in camera color space/mode ---
> three of which are adobe!?
If you set AdobeRGB, you should set Color Mode II. I don't know why Nikon didn't force that.> On the d70 and d2h (if I remember correctly), there is one color
> 'mode' menu that pretty much corresponded to capture, only the d2h
> doesn't have as many options as the d70. This previous one menu
> system kept me from catching the various alternatives in the d2x.
> Anybody else noticed this, and have you sorted it out?
It appears that Nikon has finally separated gamut (color space) from color shift (color mode). Think of I as red shift, II as accurate, and III as green shift.
Thom Hogan
author, Nikon Field Guide & Nikon Flash Guide
editor, Nikon DSLR Report
author, Complete Guides: D70, D100, D1 series, D2h, S2 Pro
http://www.bythom.com"
End quote