Digital BW, The Print

Thanks Ukko.  Quite a coincidence that you direct me to a tutorial on filter
simulation written by Glenn Mitchell who also wrote the tutorial on using
Split Channels to convert to B&W!  I need to read the article again a little
more carefully.  A pity it doesn¹t cover the B&W side of things and it
tackles the subject from the perspective of CMYK rather than RGB.  I will
re-read the article in the morning.  Is Glenn  still lurking in this list?
Unfortunately he got a rough time when he popped his head up on the subject
of converting to B&W even though I found his input extremely helpful.
Hopefully he is still around and can help me tie up the loose ends in my
knowledge base here (on or off list).

<< However, the "acutance", or sharpness, of B&W films is higher than that
of color films, and I believe that I have noticed that their local value
contrast is better, too.>>

I find it interesting that you say this because I have found scanned B&W
film (using the Imacon 848 that I rent) to produce much less ³sharp² images.
I get cleaner more contrasty images from colour converted to B&W.  Perhaps
this is just the poor development of the film.

Thanks again

Steve

From: "Ukko Heikkinen" <ukko.heikkinen@...>
Reply-To: DigitalBlackandWhiteThePrint@yahoogroups.com
Date: Sun, 18 Apr 2004 23:20:16 +0300
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject: Vs: Vs: [Digital BW] Filters and their split channels"equivalents"

How about this, Steve?

http://hort.ifas.ufl.edu/TEACH/floral/color.htm

I don't know how to put this. The "exact" complementary color is what is
exactly opposite the filter color, but of course the filter affects the
brightness of the "near-by" colors, too, but to a lesser extent.

You are right: "one advantage of colour capture is that the range of
adjustments that can be made post  capture is significantly greater than
those that can be made with B&W film.". However, the "acutance", or
sharpness, of B&W films is higher than that of color films, and I believe
that I have noticed that their local value contrast is better, too.

How about this:

http://www.thelightsright.com/DigitalDarkroom/Tutorials.htm

Ukko Heikkinen




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