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Dithering in the lighter tones with Piezography inks

Dithering in the lighter tones with Piezography inks

2006-02-06 by nemoniemann

I finally figured out how to make my profiles with my EyeOne NOT using
ProfileMaker, since my version no longer allows the use of the measure
tool in demo mode. (I use EyeOne iShare, which will give luminance
readings for all the various measurement steps.)

My profile for the Moab Entrada Bright White looks good -- visually
speaking and tonally. However, I have a pronounced dithering/dot
pattern in the, roughly, 1/4 tones of a print (as well as the 21-step
TIFF). It's visible to the naked eye, no loupe needed. In printing the
same image using the Cone provided ICC profile for Hahnemuehle Photo
Rag, printed directly from Photoshop, the dots are invisible, the
dithering, non-existent.

Has anyone figured out a way to deal with this or use a better dither
pattern than the default? Since inkjetamll is no longer providing
profiles (except at exorbitant rates) and is relying upon the user to
come up with his/her own profiles via QTR, I'd love to get this sorted
out. Thanks for the help.

Nemo

P.S. - My printer is the Epson 7000, loaded with the recent  Selenium
Quadtone inkset (not the NK6) in a WinXP environment.

Re: Dithering in the lighter tones with Piezography inks

2006-02-06 by djon43

Nemo, Saturday here I wondered something similar with Epson 2200 
and  OEM pgments...  microbanding in "lighter tones" with both 
Entrada Bright White and Moab Kayenta, Moab's "proofing" paper that 
I've begun to prefer to Entrada...this microbanding is a new 
irritant so I'm wondering if it has to do with my failed attempt to 
update 2.3.14 : 

" 
...I've recently been plagued by micro banding both in color and QTR.
The color issue seemed fixed by using the fast speed and 2880, but
that didn't help the QTR. The QTR was fixed by using ADAPTIVE HYBRID
dither...I tried the others without success. With a previous QTR
release I'd used the Casey Stengal Dither (or was it Tom
Delay?)successfully.

Yes, I've done the maintainance checks...everything's perfect. I'm
using OEM pigments, have never had a clog or maintainance issue.

What do you find to be related to micro banding? What dither do you
find most effective with 2200? "
 

--- In QuadtoneRIP@yahoogroups.com, "nemoniemann" <nemophoto@...> 
wrote:
 
> My profile for the Moab Entrada Bright White looks good --  
However, I have a pronounced dithering/dot
> pattern in the, roughly, 1/4 tones of a print (as well as the 21-
step
> TIFF). It's visible to the naked eye, no loupe needed.  > 
> Has anyone figured out a way to deal with this or use a better 
dither
> pattern than the default? Since inkjetamll is no longer providing
> profiles (except at exorbitant rates) and is relying upon the user 
to
> come up with his/her own profiles via QTR, I'd love to get this 
sorted
Show quoted textHide quoted text
> out. Thanks for the help.
> 
> Nemo

Re: [QuadtoneRIP] Dithering in the lighter tones with Piezography inks

2006-02-09 by Roy Harrington

Nemo,

On Monday, February 6, 2006, at 11:19  AM, nemoniemann wrote:

> I finally figured out how to make my profiles with my EyeOne NOT using
> ProfileMaker, since my version no longer allows the use of the measure
> tool in demo mode. (I use EyeOne iShare, which will give luminance
> readings for all the various measurement steps.)

I'm surprised you can't get MeasureTool to work.  What version number 
is it?
But using i1Share is fine.

>
> My profile for the Moab Entrada Bright White looks good -- visually
> speaking and tonally. However, I have a pronounced dithering/dot
> pattern in the, roughly, 1/4 tones of a print (as well as the 21-step
> TIFF). It's visible to the naked eye, no loupe needed. In printing the
> same image using the Cone provided ICC profile for Hahnemuehle Photo
> Rag, printed directly from Photoshop, the dots are invisible, the
> dithering, non-existent.

You ought to get similar results from QTR as you got with the ICC files
but I haven't tried that setup.   If you send me the profile (i.e. the 
.qidf file)
and if possible some small scans of the output, I'll see if there's 
something
to try.

Roy

>
> Has anyone figured out a way to deal with this or use a better dither
> pattern than the default? Since inkjetamll is no longer providing
> profiles (except at exorbitant rates) and is relying upon the user to
> come up with his/her own profiles via QTR, I'd love to get this sorted
> out. Thanks for the help.
>
> Nemo
>
> P.S. - My printer is the Epson 7000, loaded with the recent  Selenium
> Quadtone inkset (not the NK6) in a WinXP environment.
>
-
Roy Harrington  --  QuadToneRIP Info
quadtone@...
http://www.quadtonerip.com

Roy Harrington Black & White Photo Gallery
http://www.harrington.com

Re: Dithering in the lighter tones with Piezography inks

2006-02-09 by nemoniemann

Roy,

Thanks for your response. The version of ProfileMaker I downloaded 
was 5.5. I've since gotten fairly proficient using EyeOne iShare for 
my readings.

The dithering problem I finally solved, after numerous combinations, 
by using Adaptive Hybrid and Better. I'd still be happy to send you 
the .qidf  if you'd like. Perhaps you can suggest some improvements. 
I'm still trying to figure out the ins and outs of the software.

Nemo

--- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@...> wrote:
>
> Nemo,
> 
> On Monday, February 6, 2006, at 11:19  AM, nemoniemann wrote:
> 
> > I finally figured out how to make my profiles with my EyeOne NOT 
using
> > ProfileMaker, since my version no longer allows the use of the 
measure
> > tool in demo mode. (I use EyeOne iShare, which will give 
luminance
> > readings for all the various measurement steps.)
> 
> I'm surprised you can't get MeasureTool to work.  What version 
number 
> is it?
> But using i1Share is fine.
> 
> >
> > My profile for the Moab Entrada Bright White looks good -- 
visually
> > speaking and tonally. However, I have a pronounced dithering/dot
> > pattern in the, roughly, 1/4 tones of a print (as well as the 21-
step
> > TIFF). It's visible to the naked eye, no loupe needed. In 
printing the
> > same image using the Cone provided ICC profile for Hahnemuehle 
Photo
> > Rag, printed directly from Photoshop, the dots are invisible, the
> > dithering, non-existent.
> 
> You ought to get similar results from QTR as you got with the ICC 
files
> but I haven't tried that setup.   If you send me the profile (i.e. 
the 
> .qidf file)
> and if possible some small scans of the output, I'll see if 
there's 
> something
> to try.
> 
> Roy
> 
> >
> > Has anyone figured out a way to deal with this or use a better 
dither
> > pattern than the default? Since inkjetamll is no longer providing
> > profiles (except at exorbitant rates) and is relying upon the 
user to
> > come up with his/her own profiles via QTR, I'd love to get this 
sorted
> > out. Thanks for the help.
> >
> > Nemo
> >
> > P.S. - My printer is the Epson 7000, loaded with the recent  
Selenium
Show quoted textHide quoted text
> > Quadtone inkset (not the NK6) in a WinXP environment.
> >
> -
> Roy Harrington  --  QuadToneRIP Info
> quadtone@...
> http://www.quadtonerip.com
> 
> Roy Harrington Black & White Photo Gallery
> http://www.harrington.com
>

Re: Dithering in the lighter tones with Piezography inks

2006-02-09 by nemoniemann

djon, like you, I found the Adaptive Hybrid seemed to solve my 
dither problems, but unlike you, when used on Better. I also saw 
microbanding, but again, when I switched to Better, these seemed to 
have gone away. Good luck with yours.

--- In QuadtoneRIP@yahoogroups.com, "djon43" <djon43@...> wrote:
>
> Nemo, Saturday here I wondered something similar with Epson 2200 
> and  OEM pgments...  microbanding in "lighter tones" with both 
> Entrada Bright White and Moab Kayenta, Moab's "proofing" paper 
that 
> I've begun to prefer to Entrada...this microbanding is a new 
> irritant so I'm wondering if it has to do with my failed attempt 
to 
> update 2.3.14 : 
> 
> " 
> ...I've recently been plagued by micro banding both in color and 
QTR.
> The color issue seemed fixed by using the fast speed and 2880, but
> that didn't help the QTR. The QTR was fixed by using ADAPTIVE 
HYBRID
> dither...I tried the others without success. With a previous QTR
> release I'd used the Casey Stengal Dither (or was it Tom
> Delay?)successfully.
> 
> Yes, I've done the maintainance checks...everything's perfect. I'm
> using OEM pigments, have never had a clog or maintainance issue.
> 
> What do you find to be related to micro banding? What dither do you
> find most effective with 2200? "
>  
> 
> --- In QuadtoneRIP@yahoogroups.com, "nemoniemann" <nemophoto@> 
> wrote:
>  
> > My profile for the Moab Entrada Bright White looks good --  
> However, I have a pronounced dithering/dot
> > pattern in the, roughly, 1/4 tones of a print (as well as the 21-
> step
> > TIFF). It's visible to the naked eye, no loupe needed.  > 
> > Has anyone figured out a way to deal with this or use a better 
> dither
> > pattern than the default? Since inkjetamll is no longer providing
> > profiles (except at exorbitant rates) and is relying upon the 
user 
Show quoted textHide quoted text
> to
> > come up with his/her own profiles via QTR, I'd love to get this 
> sorted
> > out. Thanks for the help.
> > 
> > Nemo
>

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