Re: Epson Stylus Pro 9600 Extrachrome
Re: Epson Stylus Pro 9600 Extrachrome
- Subject: Re: Epson Stylus Pro 9600 Extrachrome
- From: Roger Breton <email@hidden>
- Date: Wed, 17 Nov 2004 12:00:08 -0500
> I haven't noticed this with Ultrachrome pigmented inks.
What kind of printed image are you using to observe that this phenomenon
does not actually affect UC inks?
> Would this be due to UV?
A combination of fluorescence from the substrate and the ink itself, I
suspect.
> http://www.antelligent.com/pages/profiles/metamerism.htm
Nice site. BTW.
> "Pigmented inks (such as used in Epson's 2000P, 7500, and 9500 series
> printers(1)) may actually fluoresce under ultraviolet light, such as
> sunlight. This tends to produce a green cast in sunlight, when the print
> looks perfectly normal under incandescent light. 1)Epson has greatly
> reduced the metamerism issue with their new Ultrachrome inks."
OK. That's exactly what I'm talking about. Yet this effect cannot be
predicted or measured because it's not metamerism per se. It's something
else.
> Would the same hold true for dye inks (The 1280 uses dyes inks,
> correct)?
Right. I know I have seen this profound effect from an Epson 1280 print
myself and it's disturbing. I wish I could quantify it and put my finger on
what is it, exactly, in the Epson inks that causes this shift in appearance.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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