RE: Lith film

Irrespective of the question of whether or not you can get a density
range of 3.2 with lith films, which by the way I know is possible
from my own work, why in the world would anyone need a negative with
such an extreme density range. Pt/Pd requires a negative DR of only
from around 1.4 to 1.8.

Sandy

>Clay,
>
>I checked it. The link shows an abstract rather then a paper. No
>process mentioned, no curves.
>I believe you saw Pt/Pd print made with PMK processed lith film. I
>also believe they retain all the subtleties in tone that you
>could want for this process. What I hardly believe, is that this was
>printed without contrasting agents. I want my neg to suit my
>process. Therefore I need a density range (w/ or w/o stain) adapted
>to pure palladiotype.
>My point is: there is no lith film / developper combination that
>will provide that 3.2 density range (visible light density).
>My tests and curves I received today confirm that.
>
>Philippe
>
>-----Original Message-----
>From: Clay [mailto:wcharmon@wt.net]
>Sent: Thursday, December 11, 2003 16:03
>To: alt-photo-process-l@skyway.usask.ca
>Subject: Re: Lith film
>
>
>I really don't agree that the lith film approach is a total dead-end
>for making enlarged negatives. I have seen real-life results from
>several workers (e.g. Stuart Melvin, Bob Herbst, Michael Kravit) who
>are producing long scale pt/pd type enlarged negatives using APHS that
>are very fine indeed, and retain all the subtleties in tone that you
>could want for this process. Naturally, it takes a little practice and
>a lot of care, but dismissing this approach completely is a little
>premature. For instance, check out :
>
>http://www.bostick-sullivan.com/Technical_papers/
>Stuart%20Melvin's%20Pyro%20System.html
>
>
>Clay
Received on Thu Dec 11 11:19:01 2003