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Digital BW, The Print

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Re: greenish cast in shadows in K4-ABW prints

2008-01-22 by daniel

Steve,

Thanks for your response!

Your observations about Epson MK vs. Eboni confirm what Paul Roark
explained to me offline. Mixing Epson MK and MIS LK and LLK seems to
produce very nice prints, so that looks like a reasonable solution for
matte papers. I'm very disappointed to hear that Epson PK and MIS inks
produce a gloss differential though, because that means my solution to
the green shadow problem won't work on glossy paper.

How big is the dmax difference between Eboni and Epson PKs?

The profiling method you're referring to is very straightforward and I've
been doing it for a while. You just print out a greyscale ramp, read it
with a spectrometer, and run Roy Harrington's createICC. This gives you
an ICC profile that you can use to linearize the driver in ABW, but
it doesn't give you any control over colours.

--Daniel

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