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QTR-Quadtone RIP

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Re: [QuadtoneRIP] Re: New Printer, New Problem, P800 and Digital Negatives

2016-11-22 by Keith Schreiber

Hi David,

Aha! That was not clear. Or maybe I just missed it.

In the profile that I posted, or better yet in the text file that you made with it, find the following line:

GRAY_CURVE="0;0 100;100"

You are going to replace the part within the quotation marks with your curve. Just be sure to use the same syntax. It begins and ends with quotes. The number pairs are input;output separated by a space. It's a semi-colon NOT a colon. This is important. Then change the CURVE_NAME to reflect that this is a new curve, and save the file using the curve name as the file name. Run the install command to install the new curve, print another 21-step using it, print the new neg in the darkroom, read the steps to verify your linearization. 

This is all assuming you are on a Mac. It's a little different for PC users using the Curve Creator tool, but not much.

Cheers,
Keith

Keith Schreiber
jkschreiber.com




> On Nov 21, 2016, at 6:04 PM, daimone@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
> 
> Keith,
> 
> 
> Just to clarify, I know how to calculate a grayscale curve based on a 21 step tablet, I just need to know how to plug it into the QTR profile.  Thanks!
> 
>

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