QTR-Quadtone RIP

Colin,

I haven't used Kayenta.  Is this an RC paper for PK ink?  If yes,  
then a dmax of 1.72 seems very low.  Could you please post your qidf  
file and tell us what your ink assignments are.

Carl

On Dec 10, 2007, at 10:44 AM, colingruk wrote:

>
>
> Awhile ago I was able to modify Paul Roark's HPR qidf files using the
> sliders to get good linearization.  Since then I have switched the GL
> position to the Y with generous help from Carl Schofield and put
> new\inks in a bulk feedsystem.  The curves no longer work.
>
> I therefore tried to start afresh with the 3MK-Dmax_test and 3MK-start
> files.
>
> Using amy Pulse Elite  I get an Lmin reading of 17.41 (Dmax of 1.72)
> on step 18,, or 85 per cent.  The best Lmin I can get before
> linearization has been about 20!  I have tried raising the 100% limits
> in the curves and lowering them, but cannot get the blacks that I had
> with the 3MK-Dmax_test file.
>
> With the "linearized curves" I get from `show curve', the highlights
> are dark as are the darks but the centre part of the plot is light.
> What do I need to do to bring these to a linear plot?
>
>
> Colin
>
> -- 
> Before photography, I looked - now, I see.
>
> www.colinconwayphotography.com
>
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