QTR-Quadtone RIP

Gentleman,

Thank you for the quick replies...

The local print house, using the K6 inset and the 7000, asked me to come back to day to 
try again.  So, I will do that.

As for the metamerism issue, it is an issue with the gallery and, or their clients.  They 
don't want to see this, and they will not sell them if it is present.  The metamerism issue is 
present on Epson's Lustre Paper, and the print house that created the images, incorporates 
"ImagePrint RIP" software to produce the prints.  They do not use QTR.

I don't think I am alone with this issue of metamerism at a gallery.

I will try your Photoshop suggestions today with the local K6 printer, and see if I can add a 
correction level to the image.  They showed me a few of their shop samples, and I was 
impressed with the smoothness of the black and white tones from the K6 ink set.

Again, I do not know if the software that drives the K6 printer utilizes an early version of 
QTR, and I obviously do not know what it is capable of either, just yet.

I had prints made with the Epson 9800 and the K3 inks, to compare against.  Metamerism 
is not completely gone on the Lustre paper, but gloss differential became apparent.

That said, these issues seem to be minimized, once the image is under glass in a frame.

Thank you again for your suggestions, and I will let you know how today turns out.


jim k


--- In QuadtoneRIP@yahoogroups.com, "john dean" <deanwork2003@...> wrote:
>
> 
> He's right. The ultrachome prints have very good longevity when doing
> monochrome and with QTR you shouldn't be experiencing metamerism at
> all. And, if the printer is linearized you shouldn't be seing color
> content either.
> 
> If there is no gamma adjustment on their rip (hard to imagine) all you
>  have to do is make a LEVELS ADJUSTMENT LAYER in Photoshop as he said,
> do a test, and when satisfied drag that layer into all your files. It
> sits on top as as seperate layer so you easily get back to where you
> started and can finese it from there. This is actually something you
> could do yourself if he will do a couple of small 5"x7" tests for you.
> This is really a minor problem in the larger scheme of things.
> 
> I think you will like K6 it is very beautiful.
> 
> John
> 
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "Eric Neilsen Photography"
> <eric@> wrote:
> >
> > Jim, Your image requirements 1-10 can be done with an action in PS,
> > requiring little time to fulfill. Your images, which have some color
> ink in
> > them are showing their colors when moved from light source to light
> source.
> > While that might be an issue with absolute color, it does not mean
> that the
> > image permanence is questioned. 
> > 
> >  
> > 
> > Rather than trying a curve adjustment, how about a level adjustment
> to place
> > the midpoint further down the scale. Or a different curve? All these
> would
> > be made with custom profiles from different machine and equipment.
> Was the
> > Home town lab ever able to come close? Or did they stop after one try? 
> > 
> >  
> > 
> > Your original files are not being damaged by the home town lab if
> you are
> > bringing them in on CD/DVD, so if they can adjust your files to
> match, why
> > not let them? 
> > 
> >  
> > 
> >  
> > 
> > Eric Neilsen Photography
> > 
> > 4101 Commerce Street
> > 
> > Suite 9
> > 
> > Dallas, TX 75226
> > 
> > http://e.neilsen.home.att.net
> > 
> > http://ericneilsenphotography.com
> >