Re: Gum calibration (was: Paper negatives- Ink Selection)

[Katharine Thayer <kthayer@pacifier.com>]

On Oct 18, 2008, at 3:57 PM, Katharine Thayer wrote:
> At any rate, if you want a really good calibration system,  the  
> best system in my opinion is to follow Michael Koch-Schulte's  
> tutorials using his RNP arrays to determine the color and Chart  
> Throb to determine the curves.  I don't recommend doing it the way  
> I did, spending months going over and over and over things and  
> calibrating dozens of pigment colors at many different  
> concentrations, until I understood all the ins and outs of what was  
> going on, but that's just how I am; I have to understand things.   
> You can actually get to a very quick and reliable result just by  
> following the directions.
>
> http://www.inkjetnegative.com/images/RNP/rnp.htm
Sorry, looks like I grabbed the wrong page.  Although the page linked  
above is very interesting, it's not the page I meant to point to, a  
quick and basic tutorial:

http://www.inkjetnegative.com/images/RNP/ 
quick_guide_to_making_digital_ne.htm