Re: Gum Calibration 2 (How to read color samples?)
I can be that precise. I use the Thayer primary triad, PR175 Deep Scarlet, PY110 Permanent Yellow and PB29 Ultramarine blue. All from Daniel Smith.
On Oct 24 2008, Loris Medici wrote:
Hmmm, I see. Which pigments (or paints, if you can't be that precise) do
24 Ekim 2008, Cuma, 10:17 pm tarihinde, email@example.com yazmýþ:
> Hi Loris,
> Maybe but,
> All my pigments are diluted 15ml to 150ml paint to gum. Any less and they
> get very wishy washy (insipid).
> On Oct 24 2008, Loris Medici wrote:
> David, could it be that the pigment concentration is too much? I think
> problem lays right there. In an article by Sam Wang it was written that
> mixes his color to a saturation and luminosity close to the test patches
> found in color newspaper (usually printed somewhere in the bottom or in
> the middle of two pages). And I remember Katharine writing something
> this too...
> P.S. Going to mix a new batch of gum (from powder) that will be used to
> make stock solutions...
> I will start with:
> 1+3 PY151 (15ml paint giving total 60ml stock)
> 1+5 PV19 Rose (15ml paint -> 90ml stock)
> 1+7 PB15:3 (15ml paint -> 120ml stock)
> and dilute more as necessary.
> 24 Ekim 2008, Cuma, 9:06 pm tarihinde, firstname.lastname@example.org
> > Hi Loris,
> > Your idea sounds good, however it doesn't fit with the instructions
> > which come with the product and I haven't tried it. Give it a whirl
> > and let us know how it goes. The problem I have with both these pieces
> > software is that, yes you get a good curve for each individual colour
> > yes you will get a fully tonal print from each colour, but when you lay
> > one coat upon another all bets are off. The resulting images (IMO) are
> > far too dark/dense.
> > Good Luck though
> > David H