Archived posting to the Leica Users Group, 2002/07/09

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Subject: Re: [Leica] need help on developing delta 100
From: "Olivier T. Nguyen" <onguyen@optonline.net>
Date: Tue, 09 Jul 2002 23:11:38 -0400
References: <B95115E4.18B21%pablokolodny@mac.com>

Pablo,
thank you very much for the formula.  I look into "negatives" book of ansel
adam and did not see these formulas.  only see he talk about zone expansion
thank you again
Olivier
- ----- Original Message -----
From: "Pablo Kolodny" <pablokolodny@mac.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Tuesday, July 09, 2002 9:36 PM
Subject: Re: [Leica] need help on developing delta 100


> Olivier T. Nguyen wrote:
>
> > hi everyone,
> > i have delta 100 film but i accidently set at 400.  is there anyway that
I
> > can develop this film?
> > this is  3 stops over under.
> > thank you in advance
> > Olivier
>
> Olivier,
>
> I think you have to push only 2 steps, not 3. Then, extend your usual dev.
> time if using a regular developer as the following simple formula says:
>
> 2 stop push = (x2.25)
>
> and if using compensating dev. like Tmax or Microphen us this
>
> 2 stop push = (x1.85)
>
> hope everything works fine.
>
> Pablo
>
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In reply to: Message from Pablo Kolodny <pablokolodny@mac.com> (Re: [Leica] need help on developing delta 100)