Digital BW, The Print

Theresa

I may of course be wrong, however metamerism, at least in the context of
inkjet prints, is where the colours of the print change under different
light sources.  All dyes and pigments are metameric to some extent, however
some of the early inkjet dyes and pigments exhibited significant metamerism.
The latest inksets have now got this pretty much under control so that for
most people and purposes it is no longer a problem.

The issue Gabe seems to be suffering from seems to be "bronzing".  This can
be caused by the differing reflectivities of the inks compared to the paper
surface itself (or indeed to other inks) or sometimes by a surplus of ink
which is not being taken up by the paper.  From his postings it looks as
though it is the latter problem which can be cured with a good/better
profile.  A good profile can also go a long way to curing bronzing caused by
different reflectivities as well.

David Whistance

  -----Original Message-----
  From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of Theresa
  Sent: 31 December 2009 12:14
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: Re: [Digital BW] Deep blacks seem reflective when viewed from
side (UT-RC and Epson R280)



  On 12/29/2009 1:16 AM, acevbolt wrote:
  >
  > I searched around on the forum, but wasn't sure if what I am
  > experiencing is what is referred to as "artifacts" in other posts. I'm
  > using an Epson r280 with UT-RC (glossy black)inks and Kirkland paper.
  > I noticed recently that deep blacks(maybe "pure" blacks) look odd when
  > the print is viewed at an angle. Kind of a reflection or like
  > something is on top of the paper.
  > Prior to this setup I used an Epson R220 with UT-R2(glossy) and the
  > same paper, but never had this problem. Is this a known issue(if so,
  > any recommendations?) or more likely an issue with my printer?
  >
  > Thanks in advance,
  >
  > Gabe
  >
  >
  I believe what you see is "metamrism" (sp?). Some dye based ink jet
  inks cause this problem.

  [Non-text portions of this message have been removed]



  


[Non-text portions of this message have been removed]