Re: gum prints from digital color sepations. (Since the topic has been brought up)

Thanks for the compliment, Carmen. Hey, I love your work on your website,
but was wondering if you could post one of your 10 layer gums on there so we
can see what you are talking about? I looked through all the work and could
not find a gum.
Chris
----- Original Message -----
From: "Carmen Lizardo" <carmenlizardo@yahoo.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Saturday, October 30, 2004 4:22 PM
Subject: Re: gum prints from digital color sepations. (Since the topic has
been brought up)

> Dear Chris,
> Thank you so much for all of the advise. I think i
> have to chage my pigments colors and brand name.
> It never occured to me to mix one whole tube of paint
> and have stock solution. That maked perfect sense to
> me.
> I would also like to say that i love your work.
>
> You can take a look at mine at:
> www.absolutearts.com/portfolios/c/carmen/
>
> Thank you kindly,
> Carmen
>
> --- "Christina Z. Anderson" <zphoto@bellsouth.net>
> wrote:
>
>> Carmen,
>>
>> Are you having to print more layers to get the color
>> corrected, or to get
>> the depth of the print right? If the latter, you
>> need to up your pigment in
>> your formula. If the former, it is the balance of
>> each color coupled with
>> exposure, perhaps.
>>
>> For whatever it is worth, here is my personal gum
>> practice--one of many
>> possible ways to go.
>>
>> I have been using M. Graham colors exclusively, it
>> seems (verrry high
>> quality but inexpensive): Quinacridone Rose (PV19R)
>> and Gamboge (PY110
>> isoindolinone) on top of a full exposure of
>> cyanotype traditional 2A:1B and
>> the fact that I am able to get a goldfish to be
>> bright orange and even get
>> the Clemson University Tigers orange color makes me
>> believe this combo suits
>> my needs perfectly :) I also have Maimeri, Daniel
>> Smith, and Winsor and
>> Newton pigments of similar colors.
>>
>> I've got two tubes of "gamboge" M. Graham, and one
>> is a different PY:
>> (151), so there has been a change in formluation,
>> but I don't think the
>> yellow is as crucial as the magenta. I prefer
>> transparent yellows.
>>
>> When using these colors, I find that I use about a
>> proportion of yellow in
>> my mix that errs closer to 1 1/4 to magenta
>> 3/4...how I measure is I
>> overflow the yellow teaspoon and I underflow the
>> magenta teaspoon in my mix.
>>
>> Hence, my formula is, as I've said before here, a
>> whole tube of the color
>> mixed in a 50ml plastic bottle of gum arabic 1+2
>> water (i mix from powder).
>> That is my stock. Then I take a tsp of this, more
>> or less, and a tsp of gum
>> 1+2, to 1 1/2 tsp water to 1/2 tsp of saturated am
>> di. With diginegs I
>> expose the yellow a little shorter than the magenta,
>> so yellow may be closer
>> to 4 mn and magenta 5, not that that is crucial,
>> since a longer development
>> can also take care of that. That's it. Spray
>> development, usually. Sized
>> paper.
>>
>> Not that printing 10 or 11 layers is a bad thing; it
>> gives a nice gloss to
>> the image, but **having** to do that is not
>> necessary to get a tricolor
>> print. I have never felt a need to do over 4 or 5.
>> But you say your print
>> looks beautiful so maybe you are doing the right
>> thing?
>> Chris
>>
>> From: "Carmen Lizardo" <carmenlizardo@yahoo.com>
>> To: <alt-photo-process-l@sask.usask.ca>
>> Sent: Friday, October 29, 2004 8:44 PM
>> Subject: gum prints from digital color sepations.
>> (Since the topic has been
>> brought up)
>>
>>
>> > Dear List,
>> >
>> > I've been trying to make gum prints from color
>> > separations done in Photoshop, but I only got a
>> > satisfactory print after 10 layers of colors. I
>> > started with a cyanotype as my first color and
>> then
>> > used Smiincke ruby red and Grumbacher cadmium
>> yellow
>> > light. After, I used Winsor ultramarine blue mixed
>> > with the Grumbacher cadmium yellow light, next I
>> > applied the ruby red again and fallow by several
>> > layers of Payne's gray and neutral tint (mixed
>> > interchangeably with blue and red). The print
>> looks
>> > beautiful, although the colors don't match the
>> > original. But I was wondering if there is an easer
>> way
>> > (less layers) of making a color separated gum
>> print.
>> > Thanks!
>> > Carmen
>> >
>> >
>> >
>> >
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>
>
>
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Received on Sun Oct 31 15:10:54 2004