QTR-Quadtone RIP

I'll post my ink profiles for the 1400 for pt/pd and KM73 polymer gravure positives. Please note that the pt/pd profiles work for my fluorescent light box and my Amergraph unit, but may require tweaking the gray curve if you use a different light source.

--- In QuadtoneRIP@yahoogroups.com, Ted <mysteriousmirage@...> wrote:
>
> Thanks Clay, this is a really useful document! 
> 
> 
> Wow, a gamma of 0.5? I'll have try that.
> 
> 
> Unfortunately i can't use PS curve script because i'm using PS2, which is one reason i'd consider using the Curve Calculator program from PDN. I've been using the good old pad-of-paper method, and having a hard time visualizing what it is i'm actually doing with the curve data. 
> 
> I noticed at the end of your guide you mention you might do a guide for the 1400, do you have this? As it happens i'm using a 1400. I've never had any problems with density in my negatives though, if anything i've had the opposite problem.
> 
> -Ted
> 
> 
> 
> ________________________________
>  From: clayharmon47 <clay@...>
> To: QuadtoneRIP@yahoogroups.com 
> Sent: Wednesday, December 28, 2011 6:50 AM
> Subject: [QuadtoneRIP] Re: PDN system and QTR
>  
> 
> Â  
> As mentioned earlier, make sure you have just enough ink to get a paper white on your print, and then use black boost to tweak your highlight contrast. Also, you are probably going the wrong way on your gamma. Lower your gamma to the 0.5 range and that will pour more ink into the lower and mid tones and require less of a curve correction. Ron Reeder and I have communicated about this for some time, and it is possible to get a profile that requires very little in the way of curve correction by lowering the gamma and increasing the black boost. The gamma thing seems counterintuitive at first, until you realize that when you lower the gamma on an image in photoshop, it goes very 'gray' and dark in the mid and lower tones. This is exactly what you want on a negative, since it lays down more ink and makes your shadows print lighter. 
> 
> I have a ~20 page pdf of my QTR negative workflow here if you want to look through it:
> 
> http://www.clayharmon.com/download/downloads/QTR.pdf
> 
> Hope this helps.
> 
> --- In QuadtoneRIP@yahoogroups.com, Ted <mysteriousmirage@> wrote:
> >
> > Yeah, i'm using the method in which C, Y, and M curves are ganged to the gray curve. I'm working now with an overall ink limit of 13 and a gamma of 1.2, which all seems a little extreme to me. 
> > 
> > Even so, i'm having a hard time getting good tonal separation through the highlights and lighter midtones. I'm getting ok negatives, but still not satisfied with it.
> > 
> > -Ted
> > 
> > 
> > 
> > ________________________________
> >  From: Alan Vlach <alanvlach@>
> > To: QuadtoneRIP@yahoogroups.com 
> > Sent: Tuesday, December 27, 2011 5:11 PM
> > Subject: Re: [QuadtoneRIP] PDN system and QTR
> > 
> > Yes you can use CCII without PDN although it helps to know the PDN process. The nice thing about using CCII is that you can create a family of curves with varying contrasts as well as hybrid curves.
> > 
> > It's just a guess, but if you are having trouble separating the highlights your ink mix might be too dense. You might also experiment with the shadow value and the gamma value to provide some separation.
> > 
> > Alan
> > 
> > On Dec 27, 2011, at 5:01 PM, Ted wrote:
> > 
> > > Thanks a lot Alan, et al.
> > > So can you use Curve Calculator without using the PDN or the PDN manual? 
> > > 
> > > I see he's selling CC2 separately for slightly cheaper, might be nice to save a little cash. 
> > > 
> > > I've been working on developing curves with the Reeder composite method, but i'm having a heck of time getting smooth curves, and having nagging issues with the highlights blowing out in my prints.
> > > 
> > > -Ted
> > > 
> > > ________________________________
> > > From: Alan Vlach <alanvlach@>
> > > To: QuadtoneRIP@yahoogroups.com 
> > > Sent: Monday, December 26, 2011 4:21 PM
> > > Subject: Re: [QuadtoneRIP] PDN system and QTR
> > > 
> > > 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
> > > > 
> > > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > > 
> > > ------------------------------------
> > > 
> > > Yahoo! Groups Links
> > > 
> > > [Non-text portions of this message have been removed]
> > > 
> > > 
> > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> > 
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
> 
> 
>  
> 
> [Non-text portions of this message have been removed]
>