QTR-Quadtone RIP

I would try textured fine art paper

On 20/11/2007, Guy Brown <guyxbrown@...> wrote:
>
>   Mike,
>
> > So question is what Epson paper setting are you using for Photo Rag?
> > I think Ultrasmooth puts down the most ink, VFA next and Textured Fine
> > Art the least.
>
> I was using VFA. So I'll try the ultrasmooth setting - thanks.
>
> > You can try the different paper settings on your 2400 to see which gives
> you
> > the best black without laying down too much ink (blocking the shadows).
> Do
> > this by printing out the Create ICC step wedge, measure it and then
> before
> > you use Create ICC, plot the values on a graph and see if the shadows
> are
> > closing up like the end of a hockey stick or not. If they are then you
> are
> > putting down too much ink, try a different paper choice in the ABW
> driver.
>
> Actually I saw this with the VFA setting - see figures below:
>
> Step Dens Lab A B
> 0.00 0.036 96.80 0.79 -1.23 - b | a L +
> 5.00 0.074 93.58 0.88 -1.05 - b | a L +
> 10.00 0.121 89.68 0.90 -0.68 - b | a L +
> 15.00 0.168 85.95 0.86 -0.40 - b | a L +
> 20.00 0.225 81.62 0.85 -0.24 - b| a L +
> 25.00 0.281 77.52 0.79 -0.06 - b| a L +
> 30.00 0.339 73.44 0.73 0.04 - b a L +
> 35.00 0.405 69.00 0.63 0.17 - b a L +
> 40.00 0.474 64.63 0.51 0.24 - b a L +
> 45.00 0.543 60.49 0.43 0.43 - |b L +
> 50.00 0.618 56.19 0.18 0.83 - a b +
> 55.00 0.700 51.79 -0.11 1.04 - a|L b +
> 60.00 0.790 47.24 0.02 0.81 - L a b +
> 65.00 0.889 42.63 -0.06 0.40 - L a|b +
> 70.00 0.969 39.13 -0.04 0.19 - L ab +
> 75.00 1.086 34.39 -0.05 0.11 - L ab +
> 80.00 1.248 28.50 -0.07 0.01 - L ab +
> 85.00 1.403 23.53 0.03 0.02 - L b +
> 90.00 1.530 19.84 0.17 0.26 - L ab +
> 95.00 1.607 17.80 0.43 0.96 - L |a b +
> 100.00 1.619 17.47 0.76 2.11 - L | a b +
>
> As you say, the values bunch up in the shadows giving a "hockey stick"
> curve. I guess that
> I'll have to experiment with some different paper settings.
>
> > Also I would use the normal setting for ABW not the darker setting. The
> both
> > have the same dmax, but normal gives Create ICC more headroom to
> manipulate
> > the shadows and I find a I get better shadows with normal.
>
> Thanks - I'm doing that already as it happens.
>
> Cheers
>
> Guy
>
> 
>


[Non-text portions of this message have been removed]