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Digital BW, The Print

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Re: [Digital BW] Indelible Black Fade Test > now PIEZO FADE TESTS

2002-03-25 by Paul Roark

Bob Obenland wrote:

>I have just re-reviewed some natural light fade tests of piezo inks
>...
>Compared with all dark stored prints the warming has created
>a significant RELATIVE change in density between the 100% patch
>and the 95% patch on all papers.

>(for Mike K - this helps greatly to separate out
>those compressed dark tones)  ;-))

I agree that the relative fade at 90-95% is where it shows up worst.  It may
actually justify printing those tones slightly compressed in anticipation of
the greater relative fading.  What comes to mind for Epson driver users is
that we could finalize the grayscale file such that it looks OK with either
sRGB or AdobeRGB and then print (convert the g/s to RGB for printing) with
the sRGB setting.  The sRGB compresses these very dark tones relative to
AdobeRGB.  So, there might be a rather easy way to compensate for what is
going to happen down the road.

>The only paper that fared well is Waterford DI CP 185
>which warmed less than uncoated Somerset Velvet.

That is impressive.  I'm not familiar with the paper.  Where is it sold, and
what type of surface/look does it have?

Paul
http://www.PaulRoark.com

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