Digital BW, The Print

Does this imply that if I am using B&W film (not C-41) where I have some
control over development times etc, that I should calibrate the
exposure/development time of the film optimally for the scanner’s
sensitivity range in order to maximize the tonal range? If this is the case,
are there any guidelines for doing this?



Thanks,

Tony



-----Original Message-----
From: craig [mailto:craygc@...]
Sent: Monday, May 26, 2003 10:02 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Re: Scanning



Completely agree Steve. I tried Vuescan and soon went back to
Nikonscan for the same reasons. The third party software cannot make
the scanner do more than its original manufacturers designed it for,
however, I believe software like Vuescan works for some people
because it blends some of the scanner controls into more intuitive
headings and performs any non-original software functions in PC RAM -
such as long-exposure pass combining, of which I have no idea
regarding its accuracy in registering the two scans, nor the
algorithm for the combining process.

Overall it is likely that as this software is positioned as "scanner"
software, many assume that if the output from it looks better, both
visually and via histograms, then it must be a better scan ignoring
that the software has already, in many cases, performed significant
image manipulation via a workflow that cannot be fully articulated.
Its great for people who scan then either stop there or go straight
to the print - A kind of "Lite Photoshop Elements".

As for the Nikon scanners themselves; from the resulting file size it
would appear that the Nikon scans B&W in RGB anyway and then performs
some rudimentary channel mix on them.

Although somewhat off topic for this board, a more interesting and
potentially usefull discussion on scanners would relate to how to
tweak the CCD amplifiers' gain to best extract more and better
information.

regards
Craig






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