U of S | Mailing List Archive | alt-photo-process-l | Re: Demachy and red chalk

Re: Demachy and red chalk

Yes I do, Henk, remember this adorable little face...
What is the brand of your Kalkrood?
Here at Cornelissen:
you can download their incredible catalog.  On page 3 there are some reds displayed, red ochre and red oxide, also Mars Red I forgot about, but I don't ever remember that name (Mars) in all my gum research and do remember the oxide and ochre...they are orangier than what one considers a normal red.  A brick red/orange.
In looking up conte on Wiki it comes up with the fact that the crayons were a combo of clay and such...boy, if you live in South Carolina the bright red clay dirt down there would be glorious for this kind of gum print. Don't ever try to hike up a clay mountain when it is raining--it is slipperier than an oiled pig.
Keuhn really liked this color as well, if I am not mistaken an example or two of his red gum prints are in Impressionist camera.  Another example of photography trying to imitate art I suppose.
Christina Z. Anderson
----- Original Message -----
From: henk thijs
Sent: Saturday, May 23, 2009 5:37 AM
Subject: Re: Demachy and red chalk

Hi Chris et al,
Maybe you remember the two images i send sometime ago:

an oilprint versus a gumprint.
For the gumprint i used a pigment 'kalkrood' (must be clear that it is 'chalk red').

On 23 mei 2009, at 4:38, Christina Z. Anderson wrote:

The print on my website is a gum print of Demachy's.
Here is a URL for powdered pigment, Indian Red, and Sennelier red ochre.
Christina Z. Anderson
----- Original Message -----
From: ender100
Sent: Friday, May 22, 2009 7:14 PM
Subject: Re: Demachy and red chalk


I think you are right.  If I remember, the Red Chalk or Sanguine was a special chalk that had a lot of iron oxide in it.

Were the Demachy prints in this color gums or photogravures?
On May 22, 2009, at 8:10:22 PM, "Christina Z. Anderson" <zphoto@montana.net> wrote:

Try Venetian red, Indian red, or red ochre.  It was a red iron oxide pigment if I remember correctly. One recipe calls for 3 g. Venetian red powder to 1/2 oz. gum. Another calls for a pigment called "light red" which I know was available about 10 yr ago anyway.  But Venetian Red is a nice brick-y color that you'd be happy with. My notes say this:  "For instance, a Venetian red or red ochre color  was used to approximate the rust colored conte crayon portraits."