[pure-silver] Re: Gigabitfilm

I tried the internet H&W developer on Efke 25 and Techpan and got lots of
pinholes.
----- Original Message -----
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Friday, February 25, 2005 7:56 AM
Subject: [pure-silver] Re: Gigabitfilm


> Probably not low contrast enough.  Low contrast developers like the =
> Gigabit developer cannot produce a usable image with normal film.  I =
> assume the Clayton developer can.
>
> If you wish to experiment, here's a formula that purports to be the H&W =
> developer.
>
> Solution 1
>
> Distilled water (50=B0C) ................. 300   ml
> Sodium sulfite (anhy) ..................   8.0 g=20
> Hydroquinone ...........................   1.2 g=20
> Sodium carbonate (anhy) ................  30.0 g=20
> Phenidone ..............................   8.3 g=20
>
> Solution 2
>
> Distilled water (50=B0C) ................. 600   ml
> Sodium sulfite (anhy) ..................  60.0 g=20
> Distilled water to make ................   1.0 l=20
>
> Method of Preparation
>
> Make up the two solutions.  Add Solution 2 to Solution 1 and dilute to 1 =
> liter.
> Store the concentrate in several small, well sealed bottles.  The =
> concentrate should=20
> keep for about 6 months.
>
> Usage
>
> Dilute 1+15 with distilled water.  Average development time is 11 - 15 =
> minutes
> at 20=B0C.  Agitate continuously for the first minute and then for 5 =
> seconds
> every 3 minutes.
>
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx =
> [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of titrisol
> Sent: Friday, February 25, 2005 10:45 AM
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: Gigabitfilm
>
>
> Would the Clayton Low Contrast developer work for this?
> I believe this film could be great for Minox and sub-mini camera users
>
> --- "Koch, Gerald" <gkoch02@xxxxxxxxxx> wrote:
>
> > Gigabit film is a microfilm (most likely made by Agfa).  Their=20
> > developer is an extremely low contrast developer essential to tame the
> > high
> > contrast of the microfilm.  There's nothing new about such a
> > combination.  In the 70's there was a company that sold such a
> > combination under the name H&W Control.
> >=20
> > While such combinations can yield virtually grainless prints with
> > extreme detail there are some problems. =3D20
> >=20
> > 1) The contrast of the negatives, while lower than normal for=20
> > microfilm, is still higher than what is considered normal for=20
> > continuous tone
> > negatives.  This makes them difficult to print and is the most
> > serious
> > drawback.
> >=20
> > 2) The film has little or no exposure latitude requiring exposures be
> > bracketed. =3D20
> >=20
> > 3) Lens faults are emphasized because of the lack of grain in the
> > negatives.  In fact, unless you have a really high quality
> > lens, your
> > prints will appear less sharp than if you had used a
> > conventional film
> > such as Efke 25.
> >=20
> > 4) The film and required developer are expensive.  35mm microfilm is=20
> > not perforated so the user is locked out of any alternative source
> > of film.
> > Gigafilm has the film perforated especially for their sales.
> >=20
> > I have not tried this latest incarnation and have no inclination to do
> > so after previous disappointments.  Perhaps Gigabit has
> > overcome the
> > inherent problems.  H&W went out a business after the initial
> > flurry of
> > interest waned because of basic dissatisfaction.
> >=20
> > Jerry
> >=20
> >=20
> > -----Original Message-----
> > From: pure-silver-bounce@xxxxxxxxxxxxx=20
> > [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Emmanuel
> > Schnetzler
> > Sent: Friday, February 25, 2005 8:52 AM
> > To: PureSilver list
> > Subject: [pure-silver] Gigabitfilm
> >=20
> >=20
> > Hi all,
> >=20
> > I was reading the Zeiss newsletter yesterday and they are talking=20
> > about the=3D3D
> >  Gigabitfilm:
> >
> http://www.zeiss.de/C12567A8003B58B9/ContentsWWWIntern/17EF1FE449AD3F64C
> > 125=3D3D
> > 6F2C002B7DBA
> > http://www.gigabitfilm.de/html/english/menu.htm (poorly designed
> > website...)
> >=20
> > Looks like it's been out for a while now (no 120 though,=20
> > unfortunatelly). A=3D3D pparently it was reviewed in the British B&W
> > magazine, which I receive, but=3D3D  I missed it. I'll have to
> > look for it
> > when I'm back home.
> >=20
> > Does anyone know anything about it? JandC are selling it in 35mm.
> >=20
> > Thanks!
> >=20
> > Manu
> > --=3D3D20 ___________________________________________________________
> > Sign-up for Ads Free at Mail.com
> > http://promo.mail.com/adsfreejump.htm
> >=20
> >
> =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
> 3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
> >
> =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
> 3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
> >
> =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
> 3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D
> >
> =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
> 3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
> > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D
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