Datacolor User to User Support Group.

I understand the choice of paper type selected for printing &
profileing changes the ink flow onto the paper but I would like to
have some information on what this really means. Just how much a
change is there between selections, what inks are affected, etc.

For those who have profiled various papers using different selections
I'd appreciate your comments on what differences your have noticed and
what selection seems to go best with which papers. I'm currently using
a mix of MOAB, Epson Hawk Mt and RedRiver papers but would appreciate
comments on any papers your have multiprofiled!

Dave

--- In colorvision_group@yahoogroups.com, "davedoughman" <davedoughman@...> 
wrote:
>
> I understand the choice of paper type selected for printing &
> profileing changes the ink flow onto the paper but I would like to
> have some information on what this really means. Just how much a
> change is there between selections, what inks are affected, etc.
> Dave

Hi Dave,

You could make custom profiles for all media settings on one paper and compare the 
results either by eye or using CDTobie's famous "LabDifferenceCalculator.xls" in the Files 
section.

I applied a much simpler route...

I was never happy how Epson's driver always block the shadows, so I did some testing last 
month to find the media setting for the best shadow detail before I made a profile. 

Here's a repost of what I found: 

Try exploring media settings to open shadows...that's what I'd recomend over changing 
Color Density as Color Density is more of a gamma correction so every part of the image 
takes a hit instead of just the shadows.

I recently tested the "best" media setting for William Turner paper on my Epson 4800.

Epson's black usually comes in hard and fast, less so with the newest printers, and I 
wanted to find the media setting that has smoothest black from 100% to 90%.

I printed a ten patch gray ramp from 100% to 90% with five media settings.

My Excel results are below for William Turner on an Epson 4800:

http://homepage.mac.com/johnvito/WilliamTurnerMediaSettings.png

From 100% to 90% only two media settings show expected linear density loss albeit 
stepped at times. While the other three actually have spiked increases in density "called 
reversals" on some patches. For example Epson's Enhanced media setting has the same 
density at the following patches: 100%, 99% and 97%. but has a reversal at the 98% patch 
and another reversal at 94%.

My media setting choice for William Turner was UltraSmooth as it has the most linear path.
In the end the custom paper profile will have less work to handle.

I have the 2100 and the only media settings I have, using the latest 
driver, are Plain Paper, Archival Matte, Watercolor paper and CD. Is 
there any way to get any other choices for this machine. The results 
you are getting below for Ultrasmooth are very intersting.

Brian

--- In colorvision_group@yahoogroups.com, "John Vitollo" <jvlist@...> 
wrote:
>
> --- In colorvision_group@yahoogroups.com, "davedoughman" 
<davedoughman@> 
> wrote:
> >
> > I understand the choice of paper type selected for printing &
> > profileing changes the ink flow onto the paper but I would like to
> > have some information on what this really means. Just how much a
> > change is there between selections, what inks are affected, etc.
> > Dave
> 
> Hi Dave,
> 
> You could make custom profiles for all media settings on one paper 
and compare the 
> results either by eye or using CDTobie's famous 
"LabDifferenceCalculator.xls" in the Files 
> section.
> 
> I applied a much simpler route...
> 
> I was never happy how Epson's driver always block the shadows, so I 
did some testing last 
> month to find the media setting for the best shadow detail before I 
made a profile. 
> 
> Here's a repost of what I found: 
> 
> Try exploring media settings to open shadows...that's what I'd 
recomend over changing 
> Color Density as Color Density is more of a gamma correction so 
every part of the image 
> takes a hit instead of just the shadows.
> 
> I recently tested the "best" media setting for William Turner paper 
on my Epson 4800.
> 
> Epson's black usually comes in hard and fast, less so with the 
newest printers, and I 
> wanted to find the media setting that has smoothest black from 100% 
to 90%.
> 
> I printed a ten patch gray ramp from 100% to 90% with five media 
settings.
> 
> My Excel results are below for William Turner on an Epson 4800:
> 
> http://homepage.mac.com/johnvito/WilliamTurnerMediaSettings.png
> 
> From 100% to 90% only two media settings show expected linear 
density loss albeit 
> stepped at times. While the other three actually have spiked 
increases in density "called 
> reversals" on some patches. For example Epson's Enhanced media 
setting has the same 
> density at the following patches: 100%, 99% and 97%. but has a 
reversal at the 98% patch 
> and another reversal at 94%.
> 
> My media setting choice for William Turner was UltraSmooth as it has 
the most linear path.
> In the end the custom paper profile will have less work to handle.
>

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
>
> 
> In a message dated 4/16/06 1:13:38 PM, zen1@... writes:
> 
> 
> > I have the 2100 and the only media settings I have, using the 
latest
> > driver, are Plain Paper, Archival Matte, Watercolor paper and CD. 
Is
> > there any way to get any other choices for this machine. The 
results
> > you are getting below for Ultrasmooth are very intersting.
> > 
> 
> This would indicate that you have Matte Black ink installed, and the 
paper 
> tray selected. For other options, choose another paper source, or 
switch black 
> inks.

But what was being talked about was trying other media settings to get 
better shadow gradations. If to get other media settings you have to 
swap out the matte black ink it rather defeats the idea. I also don't 
see any difference in the choices by changing paper source. Maybe the 
large format printers offer choices you don't get for the 2100.