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QTR-Quadtone RIP

Index last updated: 2026-04-28 23:12 UTC

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Re: [QuadtoneRIP] 21 step.psd

2007-07-31 by Roy Harrington

The 21step file goes way back.  Then we were all using only matte papers.
The numbers are typical
densities of matte paper.  Just ignore them for photo papers.

Roy


On 7/30/07, Warren Wilson <warrenbarbarawilson@...> wrote:
>
>
> When I print the 21 step.psd step wedge on Crane's
> Museo Silver
> rag I get a range of log-d from a dmax of 2.04 at 100%
> black
> to a reflection log-d of -0.04 which seems respectable
> enough,
> but in that file below the percent K numbers is
> another series
> of numbers ranging from 160 at 100 % K to zero at zero
> %
> K. What do these numbers stand for?
>
> The wedge in question is located in CurveDesign/images
>
> warrenwilson@...
>
>
>
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