From: Linas Kudzma (lkudzma@earthlink.net)
Date: 02/10/02-10:17:53 PM Z
Don,
I saw some of your Pyro negatives at APIS and they were very similar to
my long printing PMK and Rollo pyro negs. I think we are definitely over
staining and perhaps sometimes overexposing for the way we develop. As I've
told you off list, I've started using Pyrocat and really like these
negatives for Pd/Pt. Same "pyro look" to the prints, but less overall stain
and shorter print times.
Remember how Bob Herbst said he doesn't use an after bath, uses normal
Kodak Fix, and even an acid stop bath (if I recall correctly)? Seems he is
actually making an effort to minimize stain. However, still plenty of stain
on his Wimberly WD2D negs, based on the ones he showed me after his lecture.
I'm looking forward to what Carl Weese has to say about Pyrocat.
Linas
> [Original Message]
> From: <dsbryant@telocity.com>
> To: <alt-photo-process-l@sask.usask.ca>
> Date: 11/27/2001 9:27:21 AM
> Subject: Re: Double Dipping
>
> Carl,
>
> >
> > Stack of sheets in oversize tray, emulsion side *down*. Bottom sheet
lifted
> > out from under and placed on top. Go through the stack once every 30
> > seconds. Number of sheets depends on size and film type.
>
> The reason I asked was that I have found out the hard way that over
agitation in a tray will produce excessive density and stain with PMK. Even
though I have reduced my agitation to something similar to your procedure I
still have PMK negs that have long printing times when making Ziatypes for
example. It is not unusual to have a 30 minute exposure time for the
majority of my Tri-X 8x10 negs processed in PMK. I'm using BL tubes and
Cranes #90 paper. So I wonder where I may be going wrong. The upside is
that I am getting beautiful prints! As a comparison Tri-X processed in
HC-110 dil. B print in the 3 to 4 minute range! BTW, I assume your trays
have flat bottoms. I tried developing face down and got streaks because my
tray bottoms are ribbed.
>
> Bob Herbst looked at some of my negatives this past summer at APIS and
almost told me exactly how long my prints were taking to expose given my
light source. He said this was due to too much post processing stain. I've
eliminated that and still have longer times than I want. VDBs will print in
10-18 minutes. Ziatypes are running 18-20. Herbst is not using PMK anymore
(if I remember correctly) he has been using the Wimberly WD2D formula,
which I tried last week when making enlarged negatives on Arista APHS. The
stain was much much lower and the developer is much more energetic than
PMK. I'm not sure if the comparison between APHS and Tri-X is a fair one
though.
>
> Finally, I ordered some Catchecol <sp?> from Art Craft yesterday to mix
some Pyrocat-HD. I really want to see if MMMV. I plan to use old Beseler
color printing drums instead of trays. There has to be a better way to get
fast printing negatives and still have the benefits of pyro.
>
> One more thing, do the negatives you are developing in PMK allow you to
make silver, platinum/palladium, or ziatype or do you tailor your film
processing for the desired print medium?
>
> Thanks,
>
> Don Bryant
>
>
>
Linas Kudzma
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