QTR-Quadtone RIP

Hello,

I am very new to QTR.
There are a few questions that are stopping me right now.

With the latest version of Spyder3Print (-> spectro measurements) QTR profiling is supported. However, I could not find any documentation on this subject. The spyder guide only mentions this feature.

The options in Spyder3Print are linearization and createicc.
Would somebody so kind and explain the steps?

Another problem I am facing is the recommended 21 x 4 step wedge from the Eye-One folder seems to be too small for the Sypder spectrometer.
Is it possible to enlarge the wedge without affecting the measurement?

Thank you in advance.

Regards

Finally I figured it out how to use Spyder...

So may I increase the size the wedge step?
And is it correct to assign the "generic gray" profile to the image when using Photoshop CS4 on a Mac (Leopard)?



--- In QuadtoneRIP@yahoogroups.com, "siiaam" <s-i-a-m@...> wrote:

>
> Hello,
> 
> I am very new to QTR.
> There are a few questions that are stopping me right now.
> 
> With the latest version of Spyder3Print (-> spectro measurements) QTR profiling is supported. However, I could not find any documentation on this subject. The spyder guide only mentions this feature.
> 
> The options in Spyder3Print are linearization and createicc.
> Would somebody so kind and explain the steps?
> 
> Another problem I am facing is the recommended 21 x 4 step wedge from the Eye-One folder seems to be too small for the Sypder spectrometer.
> Is it possible to enlarge the wedge without affecting the measurement?
> 
> Thank you in advance.
> 
> Regards
>

I use moslty Windows XP.  My procedure below is for that setup.

While I have mostly used the older Spyder software, with my 
manual procedure I think there is only one minor change -- 
where the data is stored.  It used to be stored in the 
/Program Files directory 
("C:\Program Files\ColorVision\PrintFIX PRO\Data\Export").
  
This caused problems with Vista, which is trying to protect that directory from viruses. 
 
The latest version of the software stores the data in a user directory:
"C:\Documents and Settings\[User name]\Application Data\Datacolor\Spyder3Print\Data\Export"  

I make shortcuts on my Desktop to these locations.  (Right click on Desktop, New>Shortcut)

I've made a 21-step test file that works very well with the spectro.  See http://www.paulroark.com/BW-Info/21-Step.jpg  
I'd save this as a Tiff file. 
 
The test strip is easiest to use if a small white mark is put on 
the side of the spectro orifice that you'll see as you measure 
the 21-step test strip.  

(For strip reading procedures, the 4x21 random charts may be a better.)

Of course, the first thing one has to do with the spectro every 
time it's used is to calibrate it (Tools>Calibrate).

To measure a test strip, click on Tools>Measure.  I hit Export 
and name the file using the printer, inkset, paper and other 
abbreviations in the name that might be needed.

After measuring manually from white to black (takes 1 minute), 
hit "Done" and the data is saved as a text file in the 
folders mentioned.

I usually open the data text files first with Excel and graph 
(Insert>chart>line) the results to see if the curve is smooth.  
A kink will throw off the linearization.  A smooth bow is fine.

The data is in columns with Lab L at the left, then A and B.

For the QTR Rip, the Lab L data can just be copied and pasted into the Linearization tab.

For Create ICC, I open with or copy the Lab L data to Notepad.  
This file is saved on the Desktop with the names as mentioned above.  The file is then simply dragged to the Create-ICC icon.  
An ICC and output text file will appear on the desktop.

I hope this helps.

Paul
www.PaulRoark.com

Thanks Paul.
That part is now clear to me.


--- In QuadtoneRIP@yahoogroups.com, "pr_roark" <paul.roark@...> wrote:

>
> 
> I use moslty Windows XP.  My procedure below is for that setup.
> 
> While I have mostly used the older Spyder software, with my 
> manual procedure I think there is only one minor change -- 
> where the data is stored.  It used to be stored in the 
> /Program Files directory 
> ("C:\Program Files\ColorVision\PrintFIX PRO\Data\Export").
>   
> This caused problems with Vista, which is trying to protect that directory from viruses. 
>  
> The latest version of the software stores the data in a user directory:
> "C:\Documents and Settings\[User name]\Application Data\Datacolor\Spyder3Print\Data\Export"  
> 
> I make shortcuts on my Desktop to these locations.  (Right click on Desktop, New>Shortcut)
> 
> I've made a 21-step test file that works very well with the spectro.  See http://www.paulroark.com/BW-Info/21-Step.jpg  
> I'd save this as a Tiff file. 
>  
> The test strip is easiest to use if a small white mark is put on 
> the side of the spectro orifice that you'll see as you measure 
> the 21-step test strip.  
> 
> (For strip reading procedures, the 4x21 random charts may be a better.)
> 
> Of course, the first thing one has to do with the spectro every 
> time it's used is to calibrate it (Tools>Calibrate).
> 
> To measure a test strip, click on Tools>Measure.  I hit Export 
> and name the file using the printer, inkset, paper and other 
> abbreviations in the name that might be needed.
> 
> After measuring manually from white to black (takes 1 minute), 
> hit "Done" and the data is saved as a text file in the 
> folders mentioned.
> 
> I usually open the data text files first with Excel and graph 
> (Insert>chart>line) the results to see if the curve is smooth.  
> A kink will throw off the linearization.  A smooth bow is fine.
> 
> The data is in columns with Lab L at the left, then A and B.
> 
> For the QTR Rip, the Lab L data can just be copied and pasted into the Linearization tab.
> 
> For Create ICC, I open with or copy the Lab L data to Notepad.  
> This file is saved on the Desktop with the names as mentioned above.  The file is then simply dragged to the Create-ICC icon.  
> An ICC and output text file will appear on the desktop.
> 
> I hope this helps.
> 
> Paul
> www.PaulRoark.com
>

For some reason I am not able to print the "ink separation" file.
I am leaving the file as it is and just set in the print dialog to "no colour management".
The QTR dialog is switched to "calibration" and then I just press on print (after adjusting the settings).

What happens is the paper runs through the printer without any attempt for printing. Also, I am receiving no error message.

Otherwise my Epson 3800 works fine under Mac Leopard.

Any ideas?



--- In QuadtoneRIP@yahoogroups.com, "siiaam" <s-i-a-m@...> wrote:

>
> Hello,
> 
> I am very new to QTR.
> There are a few questions that are stopping me right now.
> 
> With the latest version of Spyder3Print (-> spectro measurements) QTR profiling is supported. However, I could not find any documentation on this subject. The spyder guide only mentions this feature.
> 
> The options in Spyder3Print are linearization and createicc.
> Would somebody so kind and explain the steps?
> 
> Another problem I am facing is the recommended 21 x 4 step wedge from the Eye-One folder seems to be too small for the Sypder spectrometer.
> Is it possible to enlarge the wedge without affecting the measurement?
> 
> Thank you in advance.
> 
> Regards
>