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Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

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Re: [Digital BW] QTR question on curve creation

2005-04-12 by Johnny Eades

Daniel, 
Thanks a lot for that info. Now I can proceed to see what else I 
might need help with :)

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Daniel Staver 
<daniel@p...> wrote:
> The ink limit step is probably the least important step of the 
whole 
> process. You can create a good curve with a pretty wide range of 
values 
> here, so just use an ink limit that avoids obviously blocked up 
shadows 
> in the stepwedges and go on to the next step. On my 2100 I've made 
good 
> curves with anything from 60 to 100 as the ink limit.
> 
> QTR also supports linearization with a scanner if you don't have a 
> densitometer, but it won't be as accurate of course.
> 
> --
> Daniel Staver
> http://daniel.staver.no
> 
> 
> 
> Johnny Eades wrote:
> > 
> > I'm starting to learn about the curve creation process and am in 
the 
> > ink density calibration stage. I've tried several ink limits to 
> > determine it, but what I would like to have some insight on is 
whether 
> > the percentages of the black output on the calibration mode at my 
> > chosen ink limit percentage should have visible separation from 
0% to 
> > 100%; as it would be in a conventional 21 step stepwedge?

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