Archived posting to the Leica Users Group, 1997/04/01

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Subject: Re: x-tol developer and tri-x400
From: ireland@blazenet.net (Robert Brummett)
Date: Tue, 1 Apr 1997 19:02:19 -0500

>Robert Brummett wrote:
>>
>> >Hi friends:
>> >
>> >Some months ago, in the LUG there was an interesting thread on developers.
>> >There was somebody that pointed out the new Kodak x-tol developer, and
>>seemed
>> >to have quite an expertise in using it.
>> >I started using it, and although I already prefer it to my former T-max
>> >developer, I still have some black holes.
>> >
>> >Could this person please tell me what does it change to use it at full
>> >strength, or at each of the different dilutions? I find the info that kodak
>> >has on the internet, insufficient.
>> >
>> >Also, when I use it at full strength(supposedly reusable for an amount of
>> >rolls) and keep it in the common black plastic bottle, when I want to reuse
>>it
>> >for the second time, after some days, it has a grey color, totally different
>> >from the transparent color it had after the first use. Is this normal? If it
>> >is not, I am worried that it could be my chrome M6 dying its color into the
>> >negatives and them to the developer.
>> >
>> >P.S: As you see IT IS a Leica-related message  : )
>> >
>> >
>> >        Nicolas Levinton. Madrid. SPAIN
>> >        nlevintonm.i-solev@nexo.es
>>
>> Nicolas-
>>
>> You may be seeing the residue of anti-halation (and perhaps other) dyes
>> from the film you have developed. I use, and recommend, a water pre-soak
>> immediately preceding development. In addition to removing some of the
>> dyes, this pre-soak renders the film more amenable to even development and
>> helps toprevent airbells. I doubt that the discoloration represents any
>> serious problem, BUT it is just another reason to consider going to a
>> developer that allows fresh, mix-on-the-spot, one-shot doses.
>>
>> Robert
>Nicolas:
>If you are going to pre-soak, you will probably need to increase your
>development time about 20%
>Randolph

Test this with care! I have pre-soaked for years, and my times are always
20-25% BELOW Kodak reccs. I don't doubt Randolph's warning, but I'd like to
know how he arrives at it.

Robert