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Re: [QuadtoneRIP] Re: Convert K3 to K5 plus C3 (for toning) - advice appreciated

2014-10-20 by Roy Harrington

Hi Amin,

I see you've gotten a lot of good advise. I'd agree in general.

But I wonder why go through all this trouble -- especially just starting out.
I think the standard Epson inks are great if you want the most flexibility with toning.
Using more grays to rid your prints of dots at the expense of seeing more dots
of color inks might not be the best tradeoff. Using the LC and LM is better but you'll
have less toning possibility in the shadows.

If you really want to learn and do custom inks and curves, starting with the standard
inks is a good place to experiment. See if you can make curves as good or better
that the builtin ones, then try leaving out a dark or light color so you can see the
actual tradeoff differences.

Roy

On Sun, Oct 19, 2014 at 1:54 AM, amog19@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:


David, Paul,


thanks for your very valuable advice - this already helped me refine my approach. Some thoughts in reply:


@ David, Paul, re K2: when doing the test chart print with QTR in calibration mode, the 100% K-channel maxes latest at around 40% and is from then on indistinguishable from the denser values. My reasoning at this point is to not leave the shadows to the K-channel but to identify a shade that pushes that max point beyond 40% (my individually perceived max point). When I look at David and Paul's K2 (also Paul's other ink set formulations) 30% seems to be the maximum possible. I conclude that this is general consensus based on testing different dilutions for K2.


@ David, re 3rd party pigment for CMY: I don't want to bust my printer / prints with bad quality pigment :-) My personal challenge is that I live in Germany and don't have access to good quality 3rd party ink products at fair prices as you have with e.g. MIS. Quality third party inks available here cost literaly about twice as much. I also don't know about a source for outdated OEM inks. Therefore my careful step-by-step spending approach. I got good shipping rates from Michael at Precisioncolors, but haven't heard from him quite some time. I hope he is doing fine.


@ David, Paul, re light C/M: thanks for the advice to use LVM and LC instead of M/C. I see in Paul's K5 article that you even do custom dilutions, e.g. 30% Magenta.


Best Regards,
Amin






--
Roy Harrington
roy@harrington.com
www.harrington.com

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