Re: Gum over Palladium

Hello Cor,

Make a light contact positive from your negative on a piece of lith
film and sandwich it on top of your MACO negative and you should be
able to achieve just what you wanted.

You can develop the lith film in standard print developer. The
resulting positive should be dark only at the deep shadow areas where
you do not want gum to cover.

I agree with Loris that digital is the way to go, especially with IR
images where density ranges cannot be as easily controlled.

Good luck,
Sam

On Oct 26, 2005, at 3:35 AM, Breukel, C. (HKG) wrote:

> Hi,
>
> I have finally had the oppertunity to do some modest alt. printing
> (modest size : 4*5). Recently done some Ziatype with a few of my MACO
> IR negatives, processed in PyrocatHD. They printed quite nice as
> Ziatypes, and these prints are a good starting point to add some
> colour to the large highlight areas (trees, grass etc) by gum
> printing. I have done a few gum over Palladium prints and although the
> end results are quite nice, I liek to hear what input people have on
> this techniques.
>
> Basically I would like to have colour only in the highlight areas, not
> in the darker parts, but I guess that that is pretty hard unless you
> mask the shadow parts (pretty though with tree trunk and branches) or
> remove the gum layer after developement when the print is still wet.
>
> I use the same neg for both gum and Ziatype (and run into long
> exposure times for the gum obviously : 30 min verse the Zia for about
> 9-12 min). I use W&N Gum and saturated PotDichr. 1:1 and W&N pigments
> (very very roughly about 0.05 gr per 1ml total volume).
>
> So are there suggestions on perhaps less dichromate, less pigment or..
> to achive the effect I would like to obtain,
>
> Thanks in advance!
>
> Best,
>
> Cor
>
>
stwang@clemson.edu
"Have fun; if not you'll bore us." ~ Marcel Duchamp
Received on Wed Oct 26 06:37:40 2005