On 25 Ott, 16:41, Jean-David Beyer <jdbe...@[EMAIL PROTECTED]
>
wrote:
> On 2007-10-25, piterengel <pslavi...@[EMAIL PROTECTED]
> wrote:
>
>
>
> > On 25 Ott, 13:06, piterengel <pslavi...@[EMAIL PROTECTED]
> wrote:
> >> On 25 Ott, 01:50, dan.c.qu...@[EMAIL PROTECTED]
wrote:
>
> >> > > "Richard Knoppow" wrote:
>
> >> > > ... but lith film remains because it is used
> >> > > in a number of alternative photographic processes
> >> > > and for special effects such as masking.
> >> > > Richard Knoppow Los Angeles, CA, USA
>
> >> > Check your local printing supply outlets or visit via the WWW
> >> > Valley Litho, a Mid West mail order supplier of a vast selection
> >> > of press room supplies including a large selection of lith - half
> >> > tone process films and developers.
> >> > Should add, also a somewhat unique assortment of film,
> >> > paper, and darkroom supplies. Dan
>
> >> Well, after all these answers I want to try to use ID-13 and Kodak
> >> D-85, for 2-3 mins with fils.
> >> I have a matter with sodium bisulphite, ttah appears in D-85 formula.
> >> I've not this substance available, can I replace it with somenthing
> >> else? Is it really necessary?
> >> Thanks, I'll let you know the results of my tests.
> >> P.
>
> > This is a self-answer! I've found that sodium sulphite can be used
> > instead of bisulphite. Considering the small amount in D-85 and making
> > the conversion using molecular weights I think to try this way.
>
> I do not know how critical pH is in this solution, but if it matters,
> sodium bisulphite is more acid than sodium sulphite.
>
> --
> .~. Jean-David Beyer Registered Linux User 85642.
> /V\ PGP-Key: 9A2FC99A Registered Machine 241939.
> /( )\ Shrewsbury, New Jersey http://counter.li.org
> ^^-^^ 10:40:01 up 2 days, 2:58, 5 users, load average: 5.30, 5.32, 5.26
D-85 has boric acid in formula, maybe it is better to add a very small
amount of acetic acid to decrease pH, even if I'm not sure it is
really necessary. Anyway, I'll try ID-13 first, if I'm lucky this
works well.
Bye
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