Originally Posted by
Andrew O'Neill
Stonehenge paper was preshrunk in boiled water. It shrunk 3mm in one direction. I stuck it in boiling water again, but no more shrinkage. This paper needs to be acidified, so it received it's usual bath in sulfamic acid.
Two digital negatives were used, one for the kallitype and one for the carbon tissue. I used my usual profiles... but they will have to be modified for this process after viewing finished print.
Registration was very, very simple. A heavy piece of plexi with two pins stuck through from the bottom side. You can see the registration marks on the finished print. The negative is taped to the tissue, registration marks are carefully poked with a pin (same size as pins on the registration board) Once exposed, the kallitype is placed on the registration board pins facing up. The exposed tissue is placed on the pins facing down. Both slipped into the mating bath for determined time. Pulled out, squeegeed, 30 minute wait time. Then the sandwich is pulled off the pins and placed in development bath.
I've been doing carbon transfers for 7 years and always struggled with highlight detail, especially when using digital negatives. This seems to solve that problem and add a new dimension that I'm digging. My first attempt was a bit on the contrasty side, so I will work it to get a much better balance. Once I've nailed it, I'll move on to my batch of more costly papers.
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