Nikon CAPTURE NX2 User Manual page 250

Adobe RGB (1998): NKAdobe.icm (Windows)/ Nikon Adobe RGB (1998) 4.0.0.3000 (Macintosh)
A color-space profile defined in Adobe Photoshop 5.0. It has a wider gamut than sRGB and includes the
colors found in most CMYK gamuts, making it suitable for users involved in desktop publishing. The
corresponding RGB setting in Adobe Photoshop 5.0 is "SMPTE-240M", the corresponding setting in Adobe
Photoshop 5.5 or later "Adobe RGB (1998)".
CIE RGB: NKCIE.icm (Windows)/ Nikon CIE RGB 4.0.0.3000 (Macintosh)
A video color-space profile established by the Commission Internationale de l'Éclairage (CIE). While it
boasts a fairly wide gamut, it suffers from the drawback that the area devoted to the reproduction of cyan
is relatively small. The corresponding RGB setting in Adobe Photoshop is "CIE RGB".
Adobe Wide RGB: NKWide.icm (Windows)/ Nikon Adobe Wide RGB 4.0.0.3000 (Macintosh)
This color-space profile, designed by Adobe, incorporates most of the visible colors. This however has the
consequence that most of the colors it can express cannot be reproduced on standard monitors and
printers. The corresponding RGB setting in Adobe Photoshop 5.0 or later is "Adobe Wide RGB". The gamut
of colors that can be expressed in the above color-space profiles is shown in the following chromaticity (x,
y) graph. The greater the area enclosed by the triangle that represents the color-space profile, the wider its
gamut.
Gamut
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Chapter 27 — Appendix: Supplied Color Profiles Standard RGB Profiles Supplied in Capture NX 2