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need help

 

I just installed the QTR and I can't seem to get it to work... I press print and nothing
happens...I'm printing with the 2200...
Re: enhanced matte cool curve

Scott Graham
 

I did do the reduced modification of LC=LM=20 and it is about perfect, maybe slightly
blue and a bit dark compared to the Epson driver.

Will next reduce LK a bit as you earlier suggested. If that isn't perfect, will try the mods
you suggest below. I suspect that a bit less LK will make it great though cuz it is so close.

Interesting how ones opinion can change: I had thought of the Epson driver print as very
cold; now it looks a bit warm compared to LC=LM=20 with the "20" print being cold
neutral.

or is the Epson cold neutral and the "20" print a bit blue? sigh...

will take a bit of relooking as time passes to decide. Both nice though ("to date")

Thanks
Scott

--- In QuadtoneRIP@..., Daniel Staver <daniel@p...> wrote:
You can try to change GRAY_GAMMA (midtones), GRAY_SHADOW (shadows), and
GRAY_HIGHLIGHT (highlights). Higher values make that part of the curve
brighter, lower values darker. Gamma will usually stay between 1 and 2
somewhere while the other two can be anything from 0 to 300 or possibly
even more.

I honestly don't know how well it works to tweak these values with
linearization in place. You're supposed to tweak them first and do the
linearization as a last step. You can try and see how it works. If the
results are horrible switch off linearization and try again. You can
actually pretty good curves without linearizing. I've made a couple of
curves which I haven't bothered to linearize simply because I already
get great prints from them just with the adjustments mentioned above.

--
Daniel Staver



Hi John and Dan,

I went with the lighter modification below "30 a s a start. Installed it and tested. The
print
comes out a bit blue which is great,

because I can easily blend it with the warm one to get just what I want. And also
because I
just learned a ton. :)

It did make the print overall too dark though---as might be expected. Is there an
easy
number to change for that? or just reduce the ink limit?

as a start will re edit the curve to an intermediate effect, maybe LC=20 or 25.
Likewise for
LM.

Bottom line is that blue is good, allows flexibility, and I am on my way.
Re: enhanced matte cool curve

 

You can try to change GRAY_GAMMA (midtones), GRAY_SHADOW (shadows), and GRAY_HIGHLIGHT (highlights). Higher values make that part of the curve brighter, lower values darker. Gamma will usually stay between 1 and 2 somewhere while the other two can be anything from 0 to 300 or possibly even more.

I honestly don't know how well it works to tweak these values with linearization in place. You're supposed to tweak them first and do the linearization as a last step. You can try and see how it works. If the results are horrible switch off linearization and try again. You can actually pretty good curves without linearizing. I've made a couple of curves which I haven't bothered to linearize simply because I already get great prints from them just with the adjustments mentioned above.

--
Daniel Staver

Hi John and Dan,
I went with the lighter modification below as a start. Installed it and tested. The print comes out a bit blue which is great,
because I can easily blend it with the warm one to get just what I want. And also because I just learned a ton. :) It did make the print overall too dark though---as might be expected. Is there an easy number to change for that? or just reduce the ink limit?
as a start will re edit the curve to an intermediate effect, maybe LC=20 or 25. Likewise for LM. Bottom line is that blue is good, allows flexibility, and I am on my way.
Re: enhanced matte cool curve

Diane Fields
 

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I'm watching this and learning too--I don't have time for this or next week to try, but find the ability to tweak a curve a terrific boon.
?
Keep us posted.??
?
Diane

----- Original Message -----
Sent: Wednesday, April 13, 2005 7:33 PM
Subject: [QuadtoneRIP] Re: enhanced matte cool curve


Hi John and Dan,

I went with the lighter modification below as a start.? Installed it and tested.? The print
comes out a bit blue which is great,

because I can easily blend it with the warm one to get just what I want.? And also because I
just learned a ton.? :)?

It did make the print overall too dark though---as might be expected.? Is there an easy
number to change for that? or just reduce the ink limit?

as a start will re edit the curve to an intermediate effect, maybe LC=20 or 25.? Likewise for
LM.?

Bottom line is that blue is good, allows flexibility, and I am on my way.

Thanks
Scott
Re: enhanced matte cool curve

Scott Graham
 

Hi John and Dan,

I went with the lighter modification below as a start. Installed it and tested. The print
comes out a bit blue which is great,

because I can easily blend it with the warm one to get just what I want. And also because I
just learned a ton. :)

It did make the print overall too dark though---as might be expected. Is there an easy
number to change for that? or just reduce the ink limit?

as a start will re edit the curve to an intermediate effect, maybe LC=20 or 25. Likewise for
LM.

Bottom line is that blue is good, allows flexibility, and I am on my way.

Thanks
Scott

--- In QuadtoneRIP@..., "John Vitollo" <jvlist@c...> wrote:

Scott I edited the cool curve for you. I just boosted the LC and LM Limit from 12 to 30. I
haven't tested it though.

You could edit the file yourself or email me and I'll send you the file.

On the Mac....

Open the file - "UC-EEnhMatte-cool" - that's in "4000-UC" folder and change the LC and
LM Limits as below:

LIMIT_K=
BOOST_K=55
LIMIT_C=0
LIMIT_M=0
LIMIT_Y=0
LIMIT_LC=30
LIMIT_LM=30
LIMIT_LK=36
Re: enhanced matte cool curve

 

Scott I edited the cool curve for you. I just boosted the LC and LM Limit from 12 to 30. I
haven't tested it though.

You could edit the file yourself or email me and I'll send you the file.

On the Mac....

Open the file - "UC-EEnhMatte-cool" - that's in "4000-UC" folder and change the LC and
LM Limits as below:

LIMIT_K=
BOOST_K=55
LIMIT_C=0
LIMIT_M=0
LIMIT_Y=0
LIMIT_LC=30
LIMIT_LM=30
LIMIT_LK=36
Re: enhanced matte cool curve

Scott Graham
 

Hi Roy,

so if one is writing a "curve" from scratch does one write a "curve descriptor file, .quad)
and convert it to an "ink descriptor file" for actual use?

except when I open a "curve" in "Profiles" that is apparently an "ink descriptor" file, the first
line of it says "curve descriptor". maybe I am too old for all this?

or what is the difference between a "curve descriptor" and an "ink descriptor"?

Aha! reading pdf's as I write this: so is an "ink descriptor" file sort of the human readable
form, and what I would write or edit, and the "curve descriptor" file the machine (printer)
readable form?

and thanks for all the help
Scott

--- In QuadtoneRIP@..., Roy Harrington <roy@h...> wrote:

Scott,

On looking at Daniel's download, he's got two files. A .qidf and a
.quad

1) You can just drag the .quad to CurveDropBox/Quad4000 and
Run-Install-Curves

or

2) Make yourself a folder MyQuad4000. Put the .qidf in it and rename
.qidf to .txt
Copy the Install4000 from the main distribution.
Just run Install4000 now, it installs any curves (.txt files) in the
same folder.
This sets you up to be able to edit the .txt file and do your own
curve making.

Roy
Re: enhanced matte cool curve

 

Scott,

On looking at Daniel's download, he's got two files. A .qidf and a .quad

1) You can just drag the .quad to CurveDropBox/Quad4000 and Run-Install-Curves

or

2) Make yourself a folder MyQuad4000. Put the .qidf in it and rename .qidf to .txt
Copy the Install4000 from the main distribution.
Just run Install4000 now, it installs any curves (.txt files) in the same folder.
This sets you up to be able to edit the .txt file and do your own curve making.

Roy


On Wednesday, April 13, 2005, at 12:09 PM, Daniel Staver wrote:


I'm on a PC and have no idea how to install a curve on a Mac. The .quad
file is the same on both platforms though, so if you can put it in the
right location it should work for you.

--
Daniel Staver


Thank you for the quick response. I forgot to mention that I am on a
Mac, and of course have no idea how to install a new curve. Do I
just put it in the curve folder that came with QTR and use the curve
install script to reinstall the whole thing?





Yahoo! Groups Links






-
Roy Harrington
roy@...
Black & White Photo Gallery
Re: Mac version 2.2a?

 

Yes, there's a new Mac release 2.2a.

The changes are:

1) Packaging Issue first. It contains all the Curve Design programs
so you no longer have to download an old version to get them.
I also fixed up the web page to clean things up a bit.

2) There's a new Tutorial for basic usage of QTR on the Mac. More
description of the options and some curve examples.

3) Bug fixes for the 2200. 2880 dpi now works. In general its probably
not worth the extra time but you may find it useful in some cases.
The profiles are for 1440 however and to use them at 2880 they need
a reduction in ink limits. In the print dialog Ink Limit -45% works well.
Minimum page size was reduced to 2x4.

4) A couple obscure bug fixes in custom paper sizes -- mostly a metric issue.


Roy


On Wednesday, April 13, 2005, at 12:01 PM, Scott Graham wrote:



Does anyone know what the new Mac version of QTR 2.2a changes from 2.1d?

Thanks
Scott

-
Roy Harrington
roy@...
Black & White Photo Gallery
Re: enhanced matte cool curve

 

I'm on a PC and have no idea how to install a curve on a Mac. The .quad
file is the same on both platforms though, so if you can put it in the
right location it should work for you.

--
Daniel Staver

Thank you for the quick response. I forgot to mention that I am on a
Mac, and of course have no idea how to install a new curve. Do I
just put it in the curve folder that came with QTR and use the curve
install script to reinstall the whole thing?
QTR tutorial

Scott Graham
 

The latest Mac version 2.2a includes a tutorial on using QTR. Some of it was available
before, but it seems to me (a beginner) to be more complete.

Scott
Mac version 2.2a?

Scott Graham
 

Does anyone know what the new Mac version of QTR 2.2a changes from 2.1d?

Thanks
Scott
Re: enhanced matte cool curve

Scott Graham
 

Hi Dan,

Thank you for the quick response. I forgot to mention that I am on a Mac, and of course
have no idea how to install a new curve. Do I just put it in the curve folder that came with
QTR and use the curve install script to reinstall the whole thing?

Thanks
Scott

--- In QuadtoneRIP@..., Daniel Staver <daniel@p...> wrote:
Earlier versions of Quadprofile would not let you control the tone of
the shadows so the midtones and highlights would end up cool while the
shadows would still have the warm tone of the UC MK ink.

With the last versions of Quadprofile for PC we've added support for
using any ink to control any other ink.

I did a quick test here:
(2.07kb)

I doubled the strength of the LC and LM inks and added C and M inks to
the black curve at the same strength as the LC and LM inks. I haven't
actually tested the curve since I'm not near my printer right now. It
will most likely be too dense since it's not relinearized, but let me
know if it's close to what you want.

--
Daniel Staver
Re: enhanced matte cool curve

 

Earlier versions of Quadprofile would not let you control the tone of the shadows so the midtones and highlights would end up cool while the shadows would still have the warm tone of the UC MK ink.

With the last versions of Quadprofile for PC we've added support for using any ink to control any other ink.

I did a quick test here:
(2.07kb)

I doubled the strength of the LC and LM inks and added C and M inks to the black curve at the same strength as the LC and LM inks. I haven't actually tested the curve since I'm not near my printer right now. It will most likely be too dense since it's not relinearized, but let me know if it's close to what you want.

--
Daniel Staver



Scott Graham wrote:

Am I the only one who thinks that the cool curve for enhanced matte is not cold enough?
Have been happily printing with the Epson 4000 driver, not icc, and getting very cold blacks, with no metamerism that I see and of course no color cast (by public acclaim).
Maybe I am just used to the coldness, but I like the stark effect.
The sliders between curves in QTR are neat though.
Carl has suggested that I edit the cool curve so I will be trying that, though I know almost nothing about it.
I would characterize the cool curve as neutral to very slightly warm.
So I am curious what you all think
Scott
enhanced matte cool curve

Scott Graham
 

Am I the only one who thinks that the cool curve for enhanced matte is not cold enough?

Have been happily printing with the Epson 4000 driver, not icc, and getting very cold
blacks, with no metamerism that I see and of course no color cast (by public acclaim).

Maybe I am just used to the coldness, but I like the stark effect.

The sliders between curves in QTR are neat though.

Carl has suggested that I edit the cool curve so I will be trying that, though I know almost
nothing about it.

I would characterize the cool curve as neutral to very slightly warm.

So I am curious what you all think
Scott
Re: HELP! My Prints are Coming Out Brown.....Why?

Steve
 

I got news for you, I have the NoK curve and it doesn't work, or at
least I can't get it to work, for this application.
When I tried printing using the QTR on lustre paper using the NoK
curve, images come out very faint and grey. I used the Photo black
and and then the Matte Black ink the results were the same.

--- In QuadtoneRIP@..., "Scott Graham" <gebilwil@n...>
wrote:

Hi,

Am finally starting to experiment with QTR on Enhanced Matte.
While the print using the
cool curve (100-0 of cool/warm) looks neutral by itself, in
comparison to an Epson driver
print it is warmer.

My Epson driver prints are COLD, and I sort of like them.

I don't see a NoK curve as mentioned in the 78/79 messages. And
don't know if it would
work for matte anyway. I have loaded the latest Mac version
2.1D.

Suggestions?

Thanks
Scott

--- In QuadtoneRIP@..., Will <will@p...> wrote:
Steve
Check out messages #78 and #79.

Will

Steve wrote:


When I use the QTR to print on either Epson Premium Luster
or
Ilford
Smooth Pearl papers, my prints have a strong brownish hue to
them.
Even with a Curve of 100% cool, they are still printing out
brown.
R1800 Support?

jkohn_home
 

Hello,

I'm wondering if there are plans for R1800 support, or if that's even
possible due to the lack of a light black in in the R1800?

Thanks,

Jeff Kohn
Re: HELP! My Prints are Coming Out Brown.....Why?

Scott Graham
 

Hi,

Am finally starting to experiment with QTR on Enhanced Matte. While the print using the
cool curve (100-0 of cool/warm) looks neutral by itself, in comparison to an Epson driver
print it is warmer.

My Epson driver prints are COLD, and I sort of like them.

I don't see a NoK curve as mentioned in the 78/79 messages. And don't know if it would
work for matte anyway. I have loaded the latest Mac version 2.1D.

Suggestions?

Thanks
Scott

--- In QuadtoneRIP@..., Will <will@p...> wrote:
Steve
Check out messages #78 and #79.

Will

Steve wrote:


When I use the QTR to print on either Epson Premium Luster or
Ilford
Smooth Pearl papers, my prints have a strong brownish hue to
them.
Even with a Curve of 100% cool, they are still printing out
brown.
Re: HELP! My Prints are Coming Out Brown.....Why?

Steve
 

Thanks, Will. When I did the step wedges on the luster papers with
pk, I noticed that they were quite warm, but thought my eyes were
playing tricks on me.

--- In QuadtoneRIP@..., Will <will@p...> wrote:
Steve
Check out messages #78 and #79.

Will

Steve wrote:


When I use the QTR to print on either Epson Premium Luster or
Ilford
Smooth Pearl papers, my prints have a strong brownish hue to
them.
Even with a Curve of 100% cool, they are still printing out
brown.
Why is this happening? All the QTRgui settings are correct and I
converted to the Photo Gray profile.

By the way, I should add that the QTR works great on Enhanced
Matte
paper (looks far superior than printing from PS and with NO
magenta
tinge to them under the flourescent lights). What a relief.

I'd appreciate hearng back from someone who might be able to
help me.

Thanks!
Steve





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Re: HELP! My Prints are Coming Out Brown.....Why?

 

Steve
Check out messages #78 and #79.

Will

Steve wrote:


When I use the QTR to print on either Epson Premium Luster or Ilford
Smooth Pearl papers, my prints have a strong brownish hue to them.
Even with a Curve of 100% cool, they are still printing out brown.
Why is this happening? All the QTRgui settings are correct and I
converted to the Photo Gray profile.

By the way, I should add that the QTR works great on Enhanced Matte
paper (looks far superior than printing from PS and with NO magenta
tinge to them under the flourescent lights). What a relief.

I'd appreciate hearng back from someone who might be able to help me.

Thanks!
Steve





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* To visit your group on the web, go to:

* To unsubscribe from this group, send an email to:
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