QTR-Quadtone RIP

Check out Ron Reeder's site. He has a procedure for making negatives with QTR. I use QTR and Mark Nelson's Curve Calculator software to execute the steps and calculate the curves. PDN itself is based on the use of color (and no black inks) to create smooth tonalities in the digital negative. I have used it extensively and it is an excellent method to make negatives, but is patented ( you can't teach it without permission which he only gives to university professors or use it for profit without paying a commission) , and, since I teach workshops in making negatives I have switched to using QTR. Ron Reeder's method mixes all the inks when making a negative and I feel the results are as good as PDN. The only downside is that PDN is very stepwise and straightforward during the calibration process whereas there is a lot of testing and guesswork to determine the right ink mix using QTR when mixing all the inks. 

Hope this helps

Alan


On Dec 26, 2011, at 3:22 PM, mysteriousmirage wrote:

> Hello,
> 
> Has anyone had expereince using the Mark Nelson Precision Digital Negative system with QTR? If so, what has been your expereince? 
> 
> Thanks,
> 
> -Ted
> 
> 



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