Re: Assigning scanner profiles
Re: Assigning scanner profiles
- Subject: Re: Assigning scanner profiles
- From: email@hidden
- Date: Fri, 21 Dec 2001 22:18:38 EST
In a message dated 12/21/01 8:46:25 PM, email@hidden writes:
<< I scan my 35mm slides with a Nikon scanner whose software can be used as a
stand alone or as a Photoshop plugin. In either case, I scan the film with
no exposure or color adjustment (as I made the profile) and then assign the
scanner profile to the image, then convert it to my working space, Adobe
RGB.
If I scan as a Photoshop plugin, the image is tagged as Adobe RGB (my
working space), to which I assign the scanner profile and then convert back
to Adobe RGB. If I use the scanner as a stand alone, I get an untagged RGB
file, that I save as a tif and then open up in Photoshop, followed by all
the assigning and converting.
The question is: am I losing something by starting with a tagged file before
assigning it the scanner profile? >>
IMHO Yes, because you are going from Nikon canned source profile to working
space somewhere at the scanner level and then from working space to custom
profile space and back to working space in PS.
You didn't mention which model Nikon scanner, but if its the 2000, 4000 or
8000 the following would apply. If you are using Nikon's Color Management
(Edit>preferences>Color Management) then the scanner is converting from its
canned profile to the working space profile you selected in the Nikon CM
module. If saved from standalone, it is tagged as such; as a plug-in, it
opens in the selected working space.
With Nikon Color Management turned off, files are not tagged. (I assume
your custom profile was made with NCM off.)
As Nikon has not seen fit to allow us to "insert" our custom device profiles
into their managed stream, for me, the best way to scan a transparancy and
use a custom profile is with NCM off, and manual post scan conversion from
custom profile to desired working space.
Hope this helps.
Ed Foster, Jr.
Photojournalist