From: Judy Seigel (jseigel@panix.com)
Date: 04/28/03-01:23:40 PM Z
On Sun, 27 Apr 2003, Sandy King wrote:
>
> Your note reminds me of a question I have about something in Carmen
> Lizardo's article on vandyke and kallitype printing in the last issue
> of PFP. Is she on this list? If not, please pass my comment and
> question on to her.
I don't know if she's on the list now, but I'll see she gets your comment
-- it's possible that her particular developer (Hall's) reacted
differently, or some other variable... Or even, being of an experimental
nature, she might have contaminated her developer and tossed it before
getting to that point !
However, a propos of the discussion of platinum vs kallitype, I'd agree
100% with her assessment that kallitype frees you to "push limits,
experiment and work large." As I recall, she was working 24 by 30 inches
at least some of the time -- with digital negatives from a large HP
printer. I don't think that's a size one undertakes casually and
"experimentally" in platinum. (I certainly wouldn't.) As for the
relative difficulty, she says that although fixing is an extra step, the
clearing is much quicker with kalli, so the total time is comparable.
I do remember, for what it's worth, the advice that came with ammonium
citrate developer from B&S for platinu/palladium -- that the more you use
it the better it gets. Is that still operative ?
Judy
>
> ON p. 22, in discussing the kallitype developer, Carmen write,
> "Finally, don't throw out your used developer; the more you use it
> the better it gets." My experience is slightly different. What I have
> found is that as a sodium acetate or sodium citrate developer is
> re-used there is an increasing tendency for the paper to develop a
> stain in the sensitized but unexposed areas of the print, and after a
> certain point the stain becomes so severe that it is not possible to
> clear it completely in the clearing bath. The only way I have found
> to prevent this stain with used developer is to replenish the
> developer, which I keep in one-liter containers, at the rate of about
> 200ml of fresh solution for approximately every 500 square inches of
> image area developed.
>
> I would be interested in Carmen's comments on this, as well as
> comments from other kallitype printers. Comments from platinum
> printers also appreciated since there may be a common thread here on
> developer exhaustion.
>
> Sandy
>
>
>
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