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QTR-Quadtone RIP

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

Message

Re: Help with RIP

2017-05-12 by sanking@...

Baback,

I placed the Palladium-100 text profile in the Files>Doc>QTR Profiles for Digital Negatives folder, along with a .quad view of the profile after it was installed. In the .quad view you can see how each of the four inks is linear from 0% to 100%, but with a different slope for each, which reflects the difference in Ink Level assigned.

I actually printed the profile with a 21 step wedge on Pictorico with my Epson 4880, and the log density range was 2.32 when measured with a UV transmission densitometer. I don't know what your density range requirements are for the pt/pd process you are using, but you can easily increase or decrease the contrast by changing the Ink Level up or down at an equal percentage of the four blocking inks in the profile.

At the same time I scanned the digital negative of the step wedge and also placed it in the same folder so you can see what the range of tones looks like when the DR is 2.32.

Sandy

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