From: Judy Seigel (jseigel@panix.com)
Date: 05/04/00-11:05:54 PM Z
On Thu, 4 May 2000, Sarah Van Keuren wrote:
> I put a b/w negative in a slide mount and projected it with a slide
> projector onto a piece of paper coated with vandyke brown. The distance was
> not much more than a foot. After 40 minutes I got an image. Think how much
> brighter the light in a slide projector is than the light in an enlarger.
I've corresponded with a couple of people who did expose "alt" prints by
enlarger. Art Chakalis printed his own version of direct carbon
(dichromate) ... Exposure time was (as I recall) about 20 minutes for an 8
by 10. He'd rigged up an enlarger with a super bright bulb -- and a fan to
keep the rig from frying.
Then Carlos Gaspharino said he exposed kallitype by enlarger, using his
own super-sensitive kallitype mix, claiming exposures of (as I recall)
maybe 5 to 15 minutes, tho revealed no further details, at least on these
premises.
Meanwhile, it seems from here that if these processes WERE readily printed
by projection, they never would have become "obsolete." And from what I
know on the topic so far -- it probably is easier in the long (or even
medium short) run to spend a day or a week learning to make the large
negs. What Jeffrey says about the extra control with large neg is so true
(and of course there's infinitely greater control digitally) -- and with a
base exposure of 15 minutes, just imagine how long it would take to burn
in.
Judy
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