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Digital BW, The Print

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Message

[Digital BW] Working process RGB vs. CMYK

2002-03-02 by Paul Roark

Cleavis,

You wrote:

>I need a reminder on this as to why we do the way we do.
>...

>If I had all my druthers - I would...

>1. use Adobe RGB 1998 as a space setting all the time, ...

I would too.  However, history being what it is ... .

As a practical matter, for quads it doesn't make a huge difference.  The
Adobe has more linear grayscale to RGB mapping in the shadow tones; sRGB
compresses these.  You could probably use Adobe RGB and just made a simple
curve to adjust for the differences -- with respect to quads, no guess as to
what would happen in color.

>2. Print from CMYK and let the whoever interpret from there.  ...

I wish the Epson driver gave us true CMYK control.  That would make it, in
effect, a free RIP -- which is probably why Epson didn't give that to us.

The problem with the Epson driver is that it "talks" RGB.  When CMYK files
are sent to it, it first translated them to RGB (then back to CMYK).  In the
translation, we lose a lot on control compared to starting with an RGB file
and making the adjustments on that file.  (At least that was my experience,
and others seem to have come to the same conclusion.)

Paul
http://www.PaulRoark.com

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