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Developer Additive

 
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John Forest

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Since: Mar 11, 2005
Posts: 4



(Msg. 1) Posted: Sat Apr 16, 2005 3:17 pm
Post subject: Developer Additive
Archived from groups: rec>photo>darkroom (more info?)

Back in the 70's I used a developer additive called Factor 8. It allowed
exposure of Tri-X at EI 6400 with quite good shadow detail. It long ago
disappeared from the market. Does anyone have any idea of a formula to
obtain these results? I doubt that it really gave me 6400, but 3200 would
seem like a realistic figure. As I recall I used it with HC-110 B and had
to double the developing time I normally used for EI 400. It seemed to
restrain the contrast build-up more than anything else.

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UC

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Since: Feb 25, 2005
Posts: 62



(Msg. 2) Posted: Sat Apr 16, 2005 5:02 pm
Post subject: Re: Developer Additive [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

John Forest wrote:
 > Back in the 70's I used a developer additive called Factor 8. It
allowed
 > exposure of Tri-X at EI 6400 with quite good shadow detail. It long
ago
 > disappeared from the market. Does anyone have any idea of a formula
to
 > obtain these results? I doubt that it really gave me 6400, but 3200
would
 > seem like a realistic figure. As I recall I used it with HC-110 B
and had
 > to double the developing time I normally used for EI 400. It seemed
to
 > restrain the contrast build-up more than anything else.

You're a fucking moron.........<!-- ~MESSAGE_AFTER~ -->

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Agit Prop

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Since: Feb 16, 2005
Posts: 3



(Msg. 3) Posted: Sun Apr 17, 2005 2:55 am
Post subject: Re: Developer Additive [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

In article <1113694792.664919.37950 RemoveThis @o13g2000cwo.googlegroups.com>,
"UC" <uraniumcommittee RemoveThis @yahoo.com> wrote:

 > John Forest wrote:
  > > Back in the 70's I used a developer additive called Factor 8. It
 > allowed
  > > exposure of Tri-X at EI 6400 with quite good shadow detail. It long
 > ago
  > > disappeared from the market. Does anyone have any idea of a formula
 > to
  > > obtain these results? I doubt that it really gave me 6400, but 3200
 > would
  > > seem like a realistic figure. As I recall I used it with HC-110 B
 > and had
  > > to double the developing time I normally used for EI 400. It seemed
 > to
  > > restrain the contrast build-up more than anything else.
 >
 > You're a fucking moron.........

Maybe, but at least he doesn't suck dick for beer money 'cause he lost
his job proofreading grad students' papers...<!-- ~MESSAGE_AFTER~ -->
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UC

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Since: Feb 25, 2005
Posts: 62



(Msg. 4) Posted: Sun Apr 17, 2005 1:20 pm
Post subject: Re: Developer Additive [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Agit Prop wrote:
 > In article <1113694792.664919.37950 RemoveThis @o13g2000cwo.googlegroups.com>,
 > "UC" <uraniumcommittee RemoveThis @yahoo.com> wrote:
 >

"Maybe, but at least he doesn't suck dick for beer money 'cause he lost

his job proofreading grad students' papers..."

So that's your problem!<!-- ~MESSAGE_AFTER~ -->
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dickburk

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Since: Jul 01, 2004
Posts: 1173



(Msg. 5) Posted: Tue Apr 19, 2005 6:11 am
Post subject: Re: Developer Additive [Login to view extended thread Info.]
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I don't know what what in this product but there were a number of
other so-called develoer improvers that were solutions of Benzotriazole
or similar organic anti-fog agents. It may also have contained
something like a Hydrazine compound which can be used to boost speed at
the cost of increased grain and fog. For the most part these products
didn't really work very well so fell by the wayside. There was another
caled Crone I think, that was definitely Benzotriazole.

--
Richard Knoppow
Los Angeles, CA, USA
dickburk RemoveThis @ix.netcom.com
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