On Oct 25, 6:36 pm, "Richard Knoppow" <dickb...@[EMAIL PROTECTED]
> wrote:
> "piterengel" <pslavi...@[EMAIL PROTECTED]
> wrote in message
>
> news:1193310410.543853.306920@[EMAIL PROTECTED]
>
> > 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.
>
> Photographic sodium bisulfite is actually mostly sodium
> metabisulfite and metabisulfite can be substituted.
> Sodium sulfite is not the same as the bisulfite. Sulfite
> is slightly alkaline, bisulfite is slightly acid. The two
> make a buffer and are used together, for instance, in Kodak
> fine grain developer D-25 and in Kodak Hypo Clearing Agent
> to get a neutral pH. Kodak has two versions of D-85, a
> single solution developer, D-85 and a two solution version
> called D-85b. The two solution version has better keeping
> properties. Both formulas specify potassium metabisulfite. I
> think the sodium form will work as well. Use whatever you
> can obtain most easily. Agfa/Ansco had similar formulas
> which call for sodium bisulfite so evidently the cation does
> not matter. The bisulfite of the Ansco formulas is, like
> Kodak, actually metabisulfite.
>
> --
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickb...@[EMAIL PROTECTED]
are my first two results. I've mounted on camera an EFKE 25
film, I've taken 8 pictures, cut this first part adn put into a tank.
Than I've taken again 8 pictures, the same of first time, cut film and
put un another tank. I've dobe this three times.
Than I've developed first part with ID-13 for 3 mins. Images are well
contrasted BUT NOT enough. I remember I'm trying to obtain LINE works.
With the second part I've used Kodak D-85 for 2.5 mins. SURPRISE!
Everything is disappeared!!! I've a totally empty film, without any
shadow or kind of figure! What's happen?
The third part is still into the tank waiting for tips.
Bye and thanks
P.
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