[pure-silver] Re: Ansco 115 Contrast Boost
- From: Eric Nelson <emanmb@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 22 Jan 2006 14:51:44 -0800 (PST)
Thanks Ralph!
I'll check that out and see how well it does w/fog
being developed for that long. I've seen fog occur in
prints developed too long in D-72 but perhaps that's
because of the metol/elon.
I naturally want to maintain the warmth that Ansco 115
provides so comparisons of time VS w/and w/o sodium
hydroxide, sodium carbonate, and hydroquinone are in
order. Thanks to all for the suggestions.
Eric Nelson
--- DarkroomMagic <info@xxxxxxxxxxxxxxxx> wrote:
> Eric
>
> My tests verify what a few people have responded
> with. Lengthening the
> developing time does indeed increase contrast with
> FB papers. I did the
> test with Dektol 1+2 and Ilford MG IV FB. The
> difference from 2 to 6 min of
> developing was a contrast increase of 0.6 grades. In
> terms of factorial
> development, this was a range from 4 to 12x.
> However, you need to reduce
> exposure at the same time by about 1/3 stop, because
> the highlights are also
> affected by the increase in development.
>
>
>
>
>
> Regards
>
>
>
> Ralph W. Lambrecht
>
> http://www.darkroomagic.com
>
>
>
>
>
>
>
> On 2006-01-19 18:44, "Eric Nelson"
> <emanmb@xxxxxxxxx> wrote:
>
> > I was wondering, before getting into a personal
> > printing session, if there's a way to boost the
> > contrast of Ansco 115.
> > I use it 1:4 with Forte VC Warmtone to get the
> warmth
> > I like, and typically I need to use a 3.5 filter
> where
> > a 1.5-2.5 would be fine with Ilford Multigrade.
> I'd
> > like to be using a lower grade filter, if
> possible.
> > Is there a way to chemically boost contrast in
> this
> > developer?
> > Eric Nelson
> >
> > __________________________________________________
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