[Frameworks] PF2 & 7302 questions

[Zach Hart]

Hey Chris,

I've used a lot of PF2 and for daylight I've rated it at ISO 4 whereas in
tungsten or on a contact printer I would shoot for something beneath ISO1.
Whatever is a higher voltage on your contact printer probably will work
better for the PF2 cause it's slow.
On a JK with the LED upgrade I had to expose each frame anywhere between
1-4 seconds. It took an extremely long time! And yes, I've mostly used
Dektol or D19 to process which creates pretty hi contrast images
particularly after duplicating a couple times over or when contact printing
from an original.

best of luck!

Zach

On Tue, Oct 2, 2018 at 11:51 AM mstarkmcr at gmail.com <mstarkmcr at gmail.com>
wrote:

> Hi Chris,
>
> I have worked with both these stocks - i prefer pf2 which i find to be
> extremely robust in terms of tolerance of light and to create high contrast
> images. I don’t know about the developer you are using as i have used
> dektol and mostly rodinal. 7302 may well be the one that needs the lower
> voltage? I have used that before too and found it similar to pf2. I can’t
> remember which was more sensitive. Both stocks to my knowledge are fine
> with dark room redlight and like i said pf2 can tolerate a quite a lot of
> light.
>
> Hope that is helpful,
>
> Mary
> On 1 Oct 2018, at 11:21, Chris G <spydir at gmail.com> wrote:
>
> > Frameworkers,
> >
> > I'm trying to figure out a few things about these print stocks. Does
> anyone know which is faster? An older B&W contact printer I'm using has two
> exposure settings, one for the ORWO stock and one for Kodak, I believe both
> to only affect the lamp operation voltage, one setting has a lower voltage
> than the other. Unfortunately it isn't terribly clear as to which of the
> two stocks corresponds to which setting, and can only assume that one is
> more light-sensitive than the other, and to go by that before running a
> test.
> >
> > Also, does anyone have experience processing either of these stocks in
> D-96? Will it yield more grain and less contrast than D-97? The main
> difference I see between the formulas is the lack of Borax in D-97...
> >
> > Are both stocks orthochromatic? Will any orange darkroom safelight be
> okay to work with?
> >
> > Thanks!
> > Christopher
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