Hardening/non-hardening fixer differences. A non hardening fixer allow
for more thorough washing in a shorter time than a hardening fixer. The
other advantage is that the negative will dry flat with minimum curl.
Overall wet times should be reduced. When I process film, I select the
developer and dilution to keep the total development time to between 5 and 7
minutes with 1 minute agitation intervals.
I also use the rapid fixer instead hypo. It washes out quicker.
Bob
----- Original Message -----
From: "Anthony Farr" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 14, 2001 9:05 AM
Subject: Re: XTOL and bubbles--follow up
> Increases in total immersion time in ~any~ stage of the process can
> contribute to an increase in apparent grain size due to a phenomenon
> called "silver migration", where the softened gelatin allows the
> developing silver grains to lose their even distribution and draw
> together into larger clumps. This was my experience when I tried
> Rodinal at 100:1 dilution, it produced larger fuzzier grains than at
> lower dilutions, I much preferred the crisper graininess I got at 50:1
> dilution.
>
> Silver migration can also arise from needlessly long washing but that's
> usually not a worry if you use a hardening fixer. However the presoak
> occurs before hardening so it is important not to over-extend its time.
>
> Some list members (memory fails me) have stated their preference for
> non-hardening fixation of their films. I would be interested to hear
> what advantage they get that would compensate them for the fragile
> nature of their non-hardened negatives.
>
> Regards,
> Anthony Farr
>
> ----- Original Message -----
> From: "Ann Sanfedele" <[EMAIL PROTECTED]>
>
> > "Juan J. Buhler" wrote:
> > >
> > > I started presoaking the film in water for a few minutes before
> developing,
> > > and my bubbles problem went away.
> >
> > Oooops! a few minutes? Under a minute is long enough -
> > I do that with almost constant but slow agitiation and
> > have had no bubbles. I think there are some problems with
> > too long a soak - someone more hep technically can express
> > this better, I'm sure.
> >
> (snip)
> -
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