Digital BW, The Print

Or, you can just eyeball the print  :  )

gar

*********** REPLY SEPARATOR  ***********

On 5/12/08 at 7:52 PM slcphoto73 wrote:

>OK, with a lot of help (see discussion in the EpsonWideFormat group, I
>came up with the following For Dummies summary:
>
>     Creating and Using Your Own Grayscale Profiles (Windows)
>
>Based on information gleaned from Eric Chan, Giorgio Trucco, Stephen
>Best, and Walker Blackwell.
>
>1.  Acquire the necessary tools
>
>- A spectrophotometer (I think it has to be the I1.)
>
>- QuadTone RIP (QTR includes a Step 51 Gray chart which you print and
>measure and the software that creates the profile. On Windows, go to
>http://software.sbillard.org/QTRgui.htm )
>
>- MeasureTool from GretagMacbeth (Download the GretagMacbeth
>ProfileMaker demo version and install the MeasureTool.  MeasureTool
>will run without a dongle, so you don't need to actually buy the
>expensive ProfileMaker to use it.)
>
>2.  Make the test print
>
>-  Open QTR\eye-one\Step-51-gray.tif into Photoshop, telling Photoshop
>"don't color manage"
>
>-  Print it onto the paper for which you are making the profile
>
>      - In the Photoshop print dialog box, select "no color management"
>
>      - In the print driver dialog box, specify Advanced Black and
>White with whatever other settings you want to use for this paper.
>Giorgio Trucco recommends "…using the Dark  setting for better linearity."
>
>      - Let the print dry
>
>3.  Use MeasureTool and your spectrophotometer to read the target
>
>-  Open MeasureTool
>
>-  Select "Configuring"
>
>      -  Specify "reflection" (for measuring paper) and leave Spectral
>toggles unchecked (this exports as LAB values) 
>
>      -  Specify your measurement device. I found I had to select it
>even if it already appeared in the dropdown window.
>
>-  Select "Measuring"
>
>      - Select the chart you printed (QTR 51 Gray) (I think I remember
>that I had to copy QTR-Gray-51.txt from the QTR program files folder
>into C:\Program Files\GretagMacbeth\ProfileMaker Professional
>5.0.8\Reference Files\Printer)
>
>      - Follow the instructions to measure the chart
>
>- Select File/SaveAs to save the result as .txt
>
>4.  Turn the .txt file into a profile
>
>-  Copy the .txt file to QTR\eye-one (WARNING: on Windows Vista I
>found I had to copy QTR_Create_ICC.exe to a regular directory, one
>that is not UAC controlled, and put the .txt file in the same directory)
>
>- Drag/drop the .txt file into QTR_Create_ICC.exe (If no .icc file
>appears check the –out.txt file (also created by QTR_Create_ICC.exe).
>There may be an explanatory warning message at the bottom.)
>
>-  Put the new profile into where your color profiles are kept. On
>Windows/Vista, that is C:\Windows\System32\spool\drivers\color
>
>5.  To use the gray profile to soft proof
>
>-  Works just like a color profile
>
>-  Rendering intent must be Perceptual
>
>-  Do use black point compensation
>
>6.  To use the gray profile to print
>
>-  Make sure your image is in mode RGB – convert it if necessary
>
>-  In Photoshop print dialog
>
>      -  Let Photoshop determine colors
>
>      -  Select the QTR profile
>
>      -  Select "perceptual" rendering intent because QTR only
>supports perceptual
>
>      -  Do check black point compensation
>
>-  In the printer driver dialog set the driver to the same settings as
>used to print the QTR 51 Gray chart.
>
>Hope this is correct and helpful. Any improvements/suggestions are
>welcome; eventually this file should be posted to the Web somewhere
>for others to find (I don't have a Web site).
>
>  - susan
> 
>
>
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