Re: [Digital BW] Digest Number 3459
2005-10-07 by Ben Ong
Re: Digest Number 3456 (piezography K7) Hello Woody and everyone else. It's nice to see talk about NK7, no one was talking about it before. Anyway, Woody you mentioned you use Eboni Black. I'm thinking of substituting Eboni as the main black in K7, and relinierizing of corse with QTR. What do you think about that idea??? I've never used any of Paul's inks before. I'm a little concerned about mixing inks with different flow properties. The NK7's are indeed "slippery" and the only time I've ever had a bad nozzle check is when I'm out of ink. The Dmax from Eboni (it said 1.75 on PhotoRag on the MIS webpage) would make K7 really be the ultimate in mono inkjet printing. But then there is also the issue of tone. Do you think introducing Eboni Black would effect the neutrality?Any help on this would be great. Thanks Benny. P.S; Oh and by the way I've also been trying to get a better Dmax via QTR using the "ink limits" and "gamma" adjustments. No real difference so far, but I've found that pumping a good amount of contrast to my image in PS gets an acceptable Dmax. It's fiddly though and as you know the more work you have to do in PS the more destructive to the file/image - so I don't like doing that. How are you going with it? Message: 2 Date: Thu, 6 Oct 2005 12:33:50 -0700 (PDT)
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From: Elwood Spedden <elwood@...> Subject: Re: Digest Number 3456 Hi I would agree. I have been using K7 for about two weeks and the most important failing for me is D Max. The darkest step on the 21 step file measures 1.4 on Photo Rag 308 which is rather pathetic compared to every other ink I use. (UC, Eboni etc) I must admit though that there is very nice transitions from step to step with the result of a finely graded tonality which is very pleasant to see. I am going to keep working on the DMax issue by playing with the QTR controls but for now K7 is simply experimental for me. Woody Spedden --- Carl Schofield <scho@...> wrote: --------------------------------- I also think that 7 grays are probably not necessary for most applications and any smoothness gains would be hard to detect on fine art papers. I'm using 4 of the neutral k7 grays (including the black) and the carbon sepia inks in a dual quad setup on my 4000, driven by QTR. I'm very pleased with the prints from both inksets.