QTR-Quadtone RIP

lours51 wrote:

>
> Rainer,
>
> I don't draw the Eye1 but place it patch after patch, is it more
> accurate , I don't know but I didn't find the way to draw it on the
> patches.
>
> Michel
>
Michel,

Looking again in your values, i suppose something must be wrong because 
the nearly no diffenrence in the values between 60 and 100% (the range 
is from 17,68 to 15,29). That means nearly black for all patches from 60 
to 100%, to much ink. Do you print with 2880 dpi. I found that 2880 dpi 
brings down to much ink.

For example here the values from the KayentaSepia i made yesterday by 
drawing the EyeOne over the stepwedge. You can see that the values range 
from 43,82 to 19,55.

File: C:\Dokumente und Einstellungen\Rainer\Eigene 
Dateien\Messungen\RT1440UCKayentaSepia-out.txt
Step    Dens    Lab    A    B   
0.00    0.045    96.04    2.09    -9.23    b                             
|       a                  L  +
5.00    0.094    91.90    2.54    -7.29    b                             
|         a              L    +
10.00    0.157    86.82    2.87    -4.64    -          
b                  |          a          L       +
15.00    0.226    81.51    3.08    -2.19    -                    
b        |           a     L           +
20.00    0.300    76.13    3.35    -0.07    -                            
b|            a L              +
25.00    0.370    71.31    3.24    1.92    -                             
|      b    a                 +
30.00    0.445    66.43    3.22    3.14    -                             
|        L  b                 +
35.00    0.520    61.83    2.93    4.62    -                             
|      L   a      b           +
40.00    0.590    57.75    2.62    5.84    -                             
|   L     a            b      +
45.00    0.658    54.02    2.45    6.44    -                             
| L      a               b    +
50.00    0.722    50.66    2.13    7.37    -                             
L       a                    b+
55.00    0.781    47.69    1.80    8.01    -                           L 
|      a                      b
60.00    0.863    43.82    1.64    7.69    -                         L   
|     a                       b
65.00    0.971    39.05    1.57    6.75    -                      L      
|     a                    b  +
70.00    1.076    34.79    1.61    5.72    -                   L         
|     a               b       +
75.00    1.200    30.18    1.60    4.52    -                 L           
|     a           b           +
80.00    1.305    26.59    1.50    3.37    -              L              
|     a      b                +
85.00    1.397    23.71    1.35    2.54    -             L               
|    a    b                   +
90.00    1.461    21.79    1.11    1.98    -            L                
|   a  b                      +
95.00    1.507    20.48    0.94    1.62    -           L                 
|  a  b                       +
100.00    1.541    19.55    0.80    1.82    -          
L                  |  a   b                      +

Created ICC file C:\Dokumente und Einstellungen\Rainer\Eigene 
Dateien\Messungen\RT1440UCKayentaSepia.icc

Why did you scan your printout and do not measure directly the 100% 
value of each ink with the EyeOne. The scanning brings up one more 
possible error source.

Regards

Rainer