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QTR-Quadtone RIP

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

Message

Re: Linearization Value Order for 2400

2006-07-11 by jkohn_home

--- In QuadtoneRIP@yahoogroups.com, "Tom Husband" <tom.husband@...> wrote:
>
> I'm creating some 2400 curves for Silver Rag and am using the
> IlfordSmPearl-neutral-cool as a starting point.  I noticed that the
> linearization values starts with the 100% value in the upper left but
> with other papers and my old 2200 it's the opposite.  Tom Moore's
> excellent user guide also says 0% should start in the upper left. 
> Does it matter?

I think you'll find that whether the biggest or smallest number is in
the first box depends on whether the values entered are Luminosity (ie
L* channel) or density/DMAX. When using an Eye One with
QTR-Linearize-Data, the linearization values you get are L* instead of
density.

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