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QTR-Quadtone RIP

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Re: [QuadtoneRIP] Tonal reversal with some papers

2007-03-14 by Mark Savoia

I was having weird problems with the Portfolio Rag also for color  
profiling. I tried the canned one from Cranes and it looked awful,  
made my own it looked better, now they are making a custom one for  
me, we will see how that looks.
Mark

On Mar 14, 2007, at 11:20 AM, john dean wrote:

> After outputting a 20 step grey scale for making a K6 QTR curve I see
> that the paper in question - the new Crane Museo Portfolio Rag -
> reverses density in the last step. The final patch reading
> significantly lighter than the next to last black patch. This has been
> the experience with the previous Museo and Museo Max papers and
> confirms others observations of the new one as well. I don't know how
> they manage to keep doing this with their coating on an otherwise nice
> paper.
>
> I realize I would need to limit the ink in QTR when remaking this
> greyscale for measurement.
>
> My question is - does one make a preset for using this ink limit
> amount  when using this curve on all subsequent prints from this curve
> in the future? I would assume so. Just haven't done it yet.
>
> John
>
>
>
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