Digital BW, The Print

Adrian,

You wrote:
>... I was hoping for something much  warmer, ...
> can you offer advice as to how I can change the colour to something
>more sepia(ish)

OK, here is what I've come up with this evening.  The VM-sepia toner as a
starting place to make an FS-Sepia-cyan didn't work very well. It was not
warm enough to be very flexible or interesting.

So, here is a draft formula for an FS-Sepia-cyan (position).  Once you mix
this you can dilute it just like you diluted the other cyan to make the
FS-Magenta and FS-Yellow for the Piezo driver (see below).  Or, if the sepia
tone is too warm, mix the FS-Sepia-cyan with the standard FS-cyan to get the
tone you want, and then do the dilutions below.

FS-Sepia-Cyan = 20% VM/FS/(Piezo?)-K, 26% MIS Archival magenta (color
pigment), and 54% MIS FS-yellow (the new yellow pigment).

Let me know how it works out.  The test strip looks (and X-Rite measures) a
lot like the shade I chose to print the sepia landscape I distributed in the
print exchange.  (A copy submitted to a juried show took best of show and
sold.)  I think it should be a useful shade/tone.

Paul
http://www.PaulRoark.com


  ----- Original Message -----
  From: Paul Roark
  To: DigitalB&WPrint
  Sent: Tuesday, February 05, 2002 4:51 PM
  Subject: Re: [Digital BW] Warm FS. A question for Paul


  Adrian,

  >Is it possible to modify the FS mix to give a tone
  >as warm as the MIS VM warm tone. ...

  The long answer:

  Now that the neutral FS is done, coming out with a warmer -- perhaps
  sepia -- version is an obvious next step.  With the densities the same
with
  all FS inks, it would then be a matter of mixing the sepia and regular to
  get the tone you like, and you would not have to worry about any density
  changes.

  Do you fill your own carts?  Would some mixing be too much trouble, or do
  you need a "plug & play" solution?

  The short answer:

  Use MIS VM cyan as the FS cyan.  They are very close in density (virtually
  identical), and the VM inkset is the base warm gray ink in the MIS Vm
  inkset.  It's the same pigment as the traditional MIS quads, just at
  different dilutions.

  Mix an FS/VM magenta as follows: 26% VM cyan and 74% MIS clear base.

  Mix an FS/VM yellow as follows:

        Method 1:      Y = 11% VM cyan, remainder clear base;

        Method 2:      Y = 43% FS/VM magenta, remainder clear base.

  Let me know how it goes.

  Paul
  http://www.PaulRoark.com