Re: Lith film and base density

From: Tom Ferguson ^lt;tomf2468@pipeline.com>
Date: 12/08/03-09:48:38 AM Z
Message-id: <FD633150-2995-11D8-8C24-000502D77DA6@pipeline.com>

Does Benz age (in liquid form)? I have some Zone VI Benz that must be
at least 10 years old. Time for fresh, or is that safe to start testing
with?

On Sunday, December 7, 2003, at 07:36 PM, Ryuji Suzuki wrote:

> From: Scott Wainer <smwbmp@starpower.net>
> Subject: Re: Lith film and base density
> Date: Sat, 06 Dec 2003 05:56:43 -0500
>
>> started using Dektol diluted 1+15 @ 70F for 2-1/2 minutes and when I
>> switched to Ansco 130 diluted 1+1 @ 70F for 5 minutes fb+f went from
>> about
>> .07 to about .03 density.
>
> Lith films are made for different chemical properties than usual
> continuous tone negative material, and they can exhibit elevated fog
> when processed in developers typical for continuous tone processing.
> This can be most effectively taken care of by addition of small amount
> of benzotriazoles or other common antifoggants such as
> 1-phenyl-5-mercaptotetrazole. It is not necessary to change developers
> just for this purpose.
>
> --
> Ryuji Suzuki
> "Reality has always had too many heads." (Bob Dylan, Cold Irons Bound,
> 1997)
>
>
--------------
Tom Ferguson
http://www.ferguson-photo-design.com
Received on Mon Dec 8 09:49:14 2003

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