QTR-Quadtone RIP

Steve,

Each curve is calibrated to a specific paper printed
on a single printer as interpreted by the curves
creator. Since each paper type is different and each
printer (even of the same type) is different and
everyone's eye is different results can be vary widely
even when everyone thinks they are doing the same
thing. When you use a curve on a paper different from
what it was created for there is a big chance you will
not get what you expect. 

If this were not the case why are there so many
curves? If every paper and ink set combo worked the
same and every photographer's notion of the correct
print color was the same there would only be the need
for one curve. (Or none Epson might even be able to do
this without a rip).

But this fortunately or unfortunately is not the case.


Each paper is different in base color and how it takes
ink. It will react differently with different inks.
These differences are what will allow personal
expression. This is what separates a fine print from a
page of text. Both pages just contain some dots. Your
Epson can do both. Isn't it the artist that makes the
difference? 

Making fine digital prints is not an exact science
(despite all the talk of spectrophotometers). Tools
can help in some of the more technical areas like
curve creation, but they are no substitute for
learning what is available with the tool as it comes. 

Test all available curves on the papers you use. Some
people print step wedges some use a single reference
image sized small enough that it fits several times on
the page. Only by knowing what you have will help you
understand what you need. 

Guy

 
--- SteveZ <blizzie12@...> wrote:
> 
> 
> After reading your reply to Andy's post, I thought
> I'd try the same 
> experiment with my 2200. I printed a b&w image on
> epson semi-gloss 
> using the UC-pk Permajet Oyster cool curve
> and....you're right....no 
> hint of brown, a very neutral print indeed. A bit of
> bronzing but 
> nothing too serious. Which begs the question about
> the QTR....why do 
> my prints turn out brown using the semi-gloss curve
> but print out 
> quite beautifully in fact with the...what's it
> called again?...the 
> Permajet Oyster curve? I just don't understand this.
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "Diane Fields"
> <picnic@c...> wrote:
> > Andy, I can't remember what printer---2200?
> > 
> > Diane
> > 
> >   I posted this to the other group, but probably
> should have posted 
> it 
> >   here...I just picked permajet oyster at random
> and ran a print on 
> >   Epson premium glossy, and got a pretty neurtral
> print.  No hint of 
> >   brown, although something seemed just a wee bit
> odd about it, and 
> I 
> >   haven't gone back yet to mess with it (glossy is
> just terrible 
> paper.  
> >   I'll bet the "oddness" wouldn't be there on
> semi-gloss of luster).
> 
> 
> 
> 
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