Re: Full color gum printing

What is the "Gum Tri-Color Yellow"?
Where do I get it?
I thought so too about the magenta but instead I went to various manufacturers using pure magenta.
I will try that way.
thanks
  ----- Original Message -----
  From: Tom Ferguson
  To: alt-photo-process-l@sask.usask.ca
  Sent: Tuesday, July 06, 2004 12:22 AM
  Subject: Re: Full color gum printing

  If you read the "Gum Tri-Color Yellow" you'll get my whole long story on tri color pigments. Right now I'm using M. Graham Quinacridone Rd #155 (Pigment PR209). Straight out of the tube it looks a bit too red to be a "perfect magenta", but I'm getting good prints :-)

  On Monday, July 5, 2004, at 08:02 PM, Giovanni Di Mase wrote:

    Hi Tom,
    What pigment you use for the magenta printing?
    I mean manufacturers name and pigment name.
    Thanks,
    Giovanni

    ----- Original Message -----
    From: Tom Ferguson
    To: alt-photo-process-l@sask.usask.ca
    Sent: Monday, July 05, 2004 12:58 PM
    Subject: Re: Full color gum printing

    You can (and I usually do) need a fourth coat to fine tune the color. Decide what color is "lacking" and print again with a weaker color mix (less paint).

    I've just started doing tri-color work, others may have more info.

    On Monday, July 5, 2004, at 07:55 AM, Giovanni Di Mase wrote:

    I am trying to figure out what adjustments can be done to an almost finish
    full color gum print but unfortunately with either slightily too much
    yellow, green or blue on the image.
    If you have experienced the process you may have run that the pigment may
    had some problems or the expoure did not come out as planned and you ended
    up with this almost complete print but with a slightly different color.
    My thoughts are than instead of throwing it away and start all over again is
    worth to try to fix it.
    Any idea or experience you would like to share on this subject?
    Thanks,
    Giovanni
    gdimaseu@yahoo.com

    --------------
    Tom Ferguson
    http://www.ferguson-photo-design.com

  --------------
  Tom Ferguson
  http://www.ferguson-photo-design.com
Received on Mon Jul 5 23:29:19 2004