Mortensen Etch-A-tone

Richard Sullivan (richsul@roadrunner.com)
Thu, 06 Jun 1996 02:32:23 -0600

>If my memory serves me right (it has been over 20 years since I took
>classes under Jack McDonald.), the pumice was used as an abrasion process
>on the silver in prints. So this is completely separate from Etch-A-Tone.
>As with abrasion with a razor blade, it helps if there is not too much
>hardener built into the paper.
>
>Also, Jack had another process where he rubbed finely ground silver into
>the emulsion of the print to darken areas.
>
>Also, the name is spelled Mortensen.

Arie,

Alas another MacDOnald student! I think you mentioned this in a private
email message. Question on names. I thought it was MacDonakl rather than
McDonald since his first company was called TriMac because there were three
Mac's in the partnership, MacDonald, Mac... and Mac..I think the first
company had a for rent limo deal going by one of the partners. You had
mentioned a second company of which I am vaguely familiar with as I think I
came over to the new place a few times. I remember Jack trying to sell me
shares in the company that had been printed on a mimeograph machine.

I believe you mentioned that Jack had been a studio photographer for Warner
Bros?

If the Etch-a-tone was a razor blade process, what was the pigment process
using oil paint and a solvent wet swab? Can you relate any details on these
tone processes? Do you have Jack's/Mortensen's gum formula, I seem to have
lost it? Did he teach you the developer-wet paper negative process? Any
other MacDonald secrets or processes?

I found MacDonald to be a wealth of information but very much on the
secretive side, he liked to dole it out as if it was part of secret cult.
When I first ran into him I had already been doing gum, Kallitype, and a few
other non-silver processes for several years and had what I believe were
some nice prints of my own work. Jack and I had sort of a love-hate
relationship as I was rather young at the time, in my late 20's early 30's,
and would call him on some errors at times. I challenged him on the Platna
Print Kits which he tried to claim were platinum, but in fact were Kallitype
kits. Maybe by the time he started the second school, he had cleaned up his
act.

Dick S.
~~
~~
Dick Sullivan
Bostick & Sullivan
Santa Fe, New mexico