Gumoil Printing Michelle Pritzl / June 14-19, 2015 Condon MT

[amournian]

Gumoil is a labor intensive process that takes several days to hand craft a print. The Gumoil process uses a positive transparency instead of a negative to create a unique, handmade image. Gum arabic and potassium dichromate are brushed onto paper and exposed, hardening the gum arabic. The paper is washed, leaving a light negative image. Oil paint is rubbed into the surface of the paper and rubbed away to create a positive image, and then prints are placed into a bleach bath to etch away gum arabic and allow for additional tonal separation and the addition of color. The final image is a textured, unique image that can be monochromatic or duotone.

Bring many images to work with, digital or analogue, the more the better. The workshop will cover everything from your enlarged positive transparencies to the finished print, and you will finish both monochrome and duotone prints as well as experiment with different sizes.


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Workshops in Montana
7079 Hwy 83 N
Condon Montana 59826
406-754-2891

formulary@blackfoot.net

www.workshopsinmt.com

 

[analog65]

I don't use any computers in my photography process. Is there a reasonable method that I can use instead of printing a black and white positive on Pictorico film using an ink printer? I have a full range of access to darkroom tools and processes that I could leverage.

 

[bdial]

I don't use any computers in my photography process. Is there a reasonable method that I can use instead of printing a black and white positive on Pictorico film using an ink printer? I have a full range of access to darkroom tools and processes that I could leverage.

You can print the negative onto lithographic sheet film. X-ray film would probably work well too.

 

[JPJackson]

You can enlarge the negative using panchromatic film via an inter positive.

 

[analog65]

I really like the idea of X-Ray film as the interpositive. I currently use Kodak Ektascan B/RA X-Ray film for negatives, so I can experiment with this medium right away. Any tips on basic guidelines for the X-Ray film in this scenario? I have a fully working darkroom, so I should have all the tools required. If anyone has any experience using X-Ray to make an interpositive, I would like to know more about this so I can give it a try.

Thanks

Andy

You can print the negative onto lithographic sheet film. X-ray film would probably work well too.