Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
Search
QTR Newbie
|
Greeting Fellow Rippers,
I just discovered that there was a Windows version of QTR a few days ago. I have downloaded it and have been churning out test prints. Here is my config: OS: Windows Printer: Epson 2200 Inks: UC with Photo Black Paper: Epson Prem. Luster, Kirkland Pro. glossy QTR: 2.2.1 standalone with QTRgui Current goal: To print Neutral BW prints on a variety of papers. Like others I often print color on this printer, as well so I am not interested in switching to dedicated BW inks at this time. I am currently trying to understand Curves. I have read through the QTRgui help, but I am still pretty ignorant. Here is a list of my current questions: 1. There are two curves used in printing. What is the difference between the two? Is one applied to highlights and the other to shadows, or are they just blended uniformly? 2. The "blend percentage: is described as: "The blend percentage shows the amount of the left hand tone curve to be used." ??? What does this mean precisely? Since there is a slider that moves from the left to the right curve, I assume that this adjusts the "balance" between the left curve and the right curve. Again is this the point at which one curve takes over or is it an overall blending across all parts of the image? 3. There appears to be only one neutral curve "UC-NoBlack-neutral". All other curves appear to have some form of toning. I'm guessing that this curve can be used with all papers? I have used this preset for both the left and right curves for almost all of my printing so far. I this the correct way to get neutral prints? Are there other options I should investigate? 4. The curve names appear to be some kind of encoding of the ink, paper, and tone. Is there any way to get a full decoding of the curve name? 5. Are there any docs or webpages I should be reading to bring me up to speed? Please don't suggest that I trudge through the thousands of posts in DBWTP. Thanks in advance for your help. I am excited about the possiblities QTR offers! Once I have done a fairly thorough testing of glossy and luster papers I will switch over to matte ink and papers for testing. -Ross |
|
Diane Fields
开云体育Ross,
?
I, too, am fairly new to QTR.? I demoed
it for several weeks and just sent Roy my 'shareware' for it since I decided its
the best thing I've found thus far (affordable at least) for monoprints without
metamerism.
?
One of the first things I learned (via the b/w
maillist) was that the one curve labeled 'no black-neutral' uses no color
ink--BUT--it is warm (this drove me crazy) because the 2200's black inks,
particularly PK--is warm.? I knew that--but I hadn't gotten my head around
the fact that it was using only the black inks I guess.? Anyhow--I was told
that this was one NOT to use or to use in conjunction with other curves--not by
itself.
?
Ah, forgot your first question--no, they both
apply to the print--just a blend of the 2 curves.? Someone on the b/w list
suggested that you print a 'roundabout' of the blends--perhaps starting at
100%-10%/90%-90%/10%-100% and 10% each step.? I haven't yet done that
myself though? *smile*.
?
Then--the curve on the left is the one that is
represented by the number.
?
The coding, as I understand it
is---UC--ultrachrome inks (the OEM colored inks),? PK for photoblack
cartridge, MK for matteblack cartridge.? Then--the name of the particular
paper, and warm, cool or sepia.
?
Another thing that is helpful--you can drag
the print within the white window--if you are printing a small print--and want
to place it on the page--its done there most easily.
?
Have you found the tutorial for the
'proofing'?? Lou Dina (I believe) also wrote a quite easy to follow one for
PCs:
?
I quote:
? Unquote: ? Hope the above is helpful.? I'm also hoping this list develops since there seem to be quite a few of us using QTR with the 2200/2100 and there seems to be quite a bit to discover with it.? I haven't, for instance, tried to create my own curves yet. ? Diane ?
?
?
--
|
|
Ross,
The curves are used for toning (warm print tone vs cool print tone) They apply equally throughout tonal (highlights and shadow) range. The sliders allow you to blend different % of warm and cool to create a tone to your liking. I am using UT2 inks so I don't know alot about some of the other questions. I would suggets setting up a warm curve and a cool curve and blend them at different % (ie 50-50, 75,25, 100-0) and print a series of step wedges. You can quickly get the feel for it on 1 shhet of paper. You might try a google seach for tutorials on QTR. The only one I know of is Tom Moore's for curve creation. DBWTP is by far the best source of information, but as you said, it is very difficult to navigate the search engine. Looking in old files I have saved, it appears QTR for windows came out in the beginning or middle of August 2004. There was a lot of traffic about basic issues during that time frame. If you can navigate back to that time, you might get a start on some answers. Hope this helps and feel free to ask more questions. Peter --- In QuadtoneRIP@..., "Ross" <ross_2u@y...> wrote: days ago. I have downloaded it and have been churning out test prints.the "balance" between the left curve and the right curve. Again is thispreset for both the left and right curves for almost all of my printing socurve name?of posts in DBWTP.possiblities QTR offers! Once I have done a fairly thorough testing of glossyand luster papers I will switch over to matte ink and papers fortesting.
|
to navigate to use esc to dismiss