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Re: filmscanners: LS-4000, calibration and Windows XP

This may be what you are thinking of:

"There is no scaling or color correction of the raw CCD data in the scanning 
step.  Some scanners either always or sometimes convert 10-bit or 12-bit CCD 
data to 8 bits before transferring it to VueScan, and then VueScan converts it 
back to 10-bit or 12-bit CCD data.  This is done using a gamma correction table 
(gamma 2.2 with a linear segment as specified by Rec. 709)."


----- Original Message ----- 
From: <filmscanner@gmx.net>
To: <filmscanners@halftone.co.uk>
Sent: Wednesday, October 24, 2001 12:25 AM
Subject: Re: filmscanners: LS-4000, calibration and Windows XP

| > I've noticed that I get much better results from Nikon Scan 3.1 if I
| > disable color management. If I continue using this technique, I assume I
| should
| > make a profile for the scanner that I'd assign to images in Photoshop. I
| could
| > also use this profile with VueScan when scanning in raw format - at least,
| > that's what I think. 
| Do not use VueScan for a 'real' raw scan. Vuescan does something to the CCD
| data (I forgot what exactly, but it is in the help file). 
| As for the Nikon device profile: The only place you can use it is in
| Photoshop opening the raw scan and assigning the device profile in the 
| profile' dialog. Vuescan uses its own version while scanning, not a 
| one. And after the image comes out of Vuescan, you don't want to assign a
| device profile anymore, but rather use a working space profile.
| Barbara Nitz
| -- 
| GMX - Die Kommunikationsplattform im Internet.
| http://www.gmx.net


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