[filmscanners] RE: Characterizing a scanner

["LAURIE SOLOMON" <laurie@advancenet.net>]

I am not sure that you can really characterize the raw native product of a
scanner per se since any characterization that you would do would have to be
either on the monitor display or the printed output; thus, would not the
profiles of those devices that one woulld need to present the file conprise
an intervening variable that would effect what one would get? I would think
that this would be true of both 16 and 8 bit files.

I would think that he MonacoProof and the IT8.7 slide would enable you to
characterize your monitor and maybe even your printer using the scan of the
IT8.7 slide as a known standard against which to determine and account for
the manner in which the devices deviate from the known standard; but it
would not work very well to characterize the native file which is produced
by the scanner without any intervention by software ( including the scanner
software itself), moitor profiles, or printer profiles.

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Joe Tait
Sent: Thursday, January 16, 2003 6:58 PM
To: laurie@advancenet.net
Subject: [filmscanners] Characterizing a scanner


I have MonacoPROOF and am trying to characterize a minolta dimage scan multi
pro
under OSX with both Vuescan and the minolta software. I currently only have
a
35mm Kodachrome IT8.7 slide to do this (despite the fact that we will be
scanning more Fuji Velvia/Provia than anything else).

Monaco rejects the scans I have made so far, and those are RAW 16bit scans,
converted to 8bit and not color corrected. Monaco says there is a problem
with
the shadow detail, obviously the raw scans are dark and I guess that is part
of
the problem.

I have always read that you want to characterize with as little settings as
possible, hence a RAW scan. Is this incorrect? What is the correct
procedure?

BTW, I would like to do just RAW 16bit, native res scans and edit in PS as
my
workflow.

Thanks.

-Joe

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