Digital BW, The Print

> From: Steve Kale [mailto:stevekale@...]
>
> I am going to retract my statement below about there being limited
> differences between the hues of BO MK and PK prints.  (It seems I
> must have
> badly labelled some test prints I did!)  BUT I don\ufffdt get brown prints with
> PK either!.  Take a look at the following page for the same image printed
> with QTR 50:50 cool:warm, BO with Epson Ultrachrome MK and BO Epson
> Ultrachrome PK.  The scans were done at 360ppi (same as the original psd
> image), Adobe RBG 1998, without colour correction with my (crappy) Epson
> Perfection 2450 (no sharpening at print nor scan).  I think they are good
> enough to show the differences in hue and even smoothness.  If
> you click on
> a thumbnail it will bring up a slide show.  If you click on an
> image in the
> slide show, it will bring the image in full size.
>
> http://homepage.mac.com/stevekale/PhotoAlbum11.html
>
> If anything I get a very slight purple tint with the PK \ufffd I
> assure you it is
> BO.  Note that this is PK purchased in Europe.  I think Carl
> Schofield once
> posted a link to a BO image with PK on EPSG (I could not find the link
> again) which had a definite brown hue.  Could it be that PK Europe is
> different from PK US?

That you should get purple is very strange. I get definite brown, and I've
heard numerous other people say the same thing. I printed a Photo Black step
wedge on Premium Luster, which I think is the same paper as Premium
Semigloss with a slightly larger texture, and measured it with the Eye-One.
The patch with the largest deviation from neutral was L=32.5, a=2.87,
b=7.22, which is definitely brownish--orange if it were lighter.

I doubt they sell different color inks in different countries, because
they'd need different profiles for them. However, it's possible that you got
a bad batch of ink. I had that happen once, although that was from Canon. If
you have another cart bought at a different time, I'd pop it in and see if
it produces same results. Or maybe PL really isn't as similar to PSG as it
looks to my eye.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...