I found this in the Nikon folder:
a) Open the Color Management tab of the Preference setting.
b) Turn on the "Nikon color management system" check box on the
dialog.
c) Open the "RGB" tab.
d) Select the "Scanner RGB" for the calibrated RGB color. When
Scanner RGB is selected, an ICC profile tag will not be embedded with
the image file when the file is saved.
SO if Nikon is to be believed, the images scanned using their procedure
do not have an embedded profile even though Photoshop says they do.
Further, Windows rejects all the Nikon Profiles on my system as invalid
when I try to install them. I seem to be having good luck by just
assigning AdobeRGB to the images as I open them.
Comments?
If you import an untagged image into Photoshop with 'Preserve Embedded
Profiles' enabled in your colour management setup, Photoshop will tag that
file with your default RGB (in this case) profile. You can prove this by
changing your default RGB space to something else - your imported files from
the Nikon will then be tagged with that profile. It also happens if you
import untagged files from a PDF. Photoshop does not give you the usual
warnings about missing profiles as it does when you *OPEN* a file (as
opposed to *IMPORT*). If there is logic there, I don't understand it.
Nikon supply various profiles with NikonScan which, as you say, are not
accepted by Photoshop - I think these are designed for Nikon's proprietry
and seemingly non-standard colour management system. There is one profile
which I have found to work, which is the one that (on Windows systems) gets
installed in the C:\WINNT\system32\spool\drivers\color folder - called
NKLS4000LS40.icm in the case of the Coolscan 4000. (Look for a profile that
doesn't have underscore anything in the name. You can't use it as your RGB
working space but you can assign it to your images.
Hope this helps.
