[rollei_list] Re: Developer 130
- From: "X.TRUONG" <truongthx@xxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Thu, 30 Oct 2008 16:40:02 +0700
Thank you very much Mr. Knoppow.
My mail server had some problems
I saw some thing about the chemistry, metol make the print sofer,
hydroquinone make more contrast, borax make film harder, postassium bromide
prevent the highlight of first print??? Or sodium sunfit make the film or
print clearly... Please give me something about these...
Best regards,
Xuan Truong
-----Original Message-----
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
Sent: Friday, October 24, 2008 12:44 AM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Developer 130
----- Original Message -----
From: "X.TRUONG" <truongthx@xxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Thursday, October 23, 2008 9:05 AM
Subject: [rollei_list] Developer 130
> Dear everyone,
>
> I want to mix this developer fomular. Everyone know where
> online shop is in
> US or Canada sell chemistry to mix it (glycin, metol,
> potassium bromide...)?
> You could compare the print developed from this fomular
> and Kodak (Polymax
> T, Selectol, Dektol), Ilford (Multigrade Dev, ...).
>
> Best regards,
> Xuan Truong
>
I am pretty sure Photographer's Formulary sells glycin,
and in fact, a kit for Agfa/Ansco 130. Essentially, 130 is
similar to Kodak D=72/Dektol but with the addition of about
11 grams of glycin per liter of stock and some additional
potassium bromide. I have not used 130 for many years. Ansco
sold it as a high capacity standard developer. Many seem to
think it gives a more neutral (less green) image color than
Dektol.
Selectol was the packaged version of Kodak D-52, this
is a somewhat less active developer than D-72/Dektol and was
recommended for warm tone papers although it is not an
inherently warm tone developer. Formulas for D-72, D-52, and
Ansco/Agfa 130 are on the web and I have posted all three to
both the Pure Silver list and to the Usenet group
rec.photo.darkroom so a Google search should find them.
Polymax-T and Multigrade are proprietary formulas. I
think both are liquid concentrates. The formulas for liquid
concentrates contain chemicals that can be dissolved in high
concentration and others which keep everyihing in solution
so they are somewhat difficult to compare with powder
formulas.
What you are asking, of course, is about results and I
can't give those to you except for Dektol and Selectol and
Agfa Neutol Plus, which I believe is a Phenidone and
ascorbic acid developer.
A note: There are dozens of developer formulas in the
literature. Every maker of paper had its formulas. Most of
these are variations of D-72/Dektol or D-52/Selectol
although there were a few unique ones such as Agfa/Ansco
130. Its fun to experiment but don't expect large
differences except for some special purpose (very warm tone
for instance) developers.
The addition of potassium bromide to most fairly active
developers will make them more warm toned and benzotriazole
will make them more cold toned but, ultimately, the image
color depends more on the nature of the emulsion than on the
developer.
If you need any of these formulas and can't find them
easily on the web I will post them here.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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