Digital BW, The Print

Ernst Dinkla <edinkla@...> wrote:
>
> Op 10-1-2011 16:26, Roger Barrett schreef:
> 
> > ...does the Epson ink suffer from (severe) metamerism?
> 
> ...
> Paul is researching the Claria Black ink and I guess he would have 
> observed "metamerism" mild or severe fast enough.

I wanted to give a modified response to this issue.  I've come back to making some comparison prints with the 1400 -- just using the C and LC positions -- on high gloss papers.  The three inks I was comparing are MIS UT14 C & LC (a neutralized LK and PK), HP PK and 30% HP PK, and the Noritsu-Epson K & 30%K (blended with 13% Noritsu M).

With respect to just the issue of metamerism, the Noritsu-Epson dye does show considerably more of it.  The black ink has a blue-green bias that, even when neutralized with 13% magenta, shows up much more, particularly in the shadows, when a fluorescent light is used.

However, one has to balance this against the positives and negatives of the other approaches.  HP is no doubt the most lightfast, but it has a serious bronzing that seriously veils the shadows relative to the Noritsu inks.  The MIS UT14 inks have less bronzing, but they are just flat, with a finish that looks dull in comparison with either the HP or Noritsu.

Overall, I think for high gloss cards and the like, I'd still pick the dye as having the best look, even with its metamerism.  

Paul
www.PaulRoark.com