Archived posting to the Leica Users Group, 2002/01/03

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Subject: Re: [Leica] Re: Mark Rabiner's XTol tricks
From: Richard Comen <>
Date: Thu, 03 Jan 2002 20:24:41 -0800
References: <> <>

Almost no developer deteriorates more rapidly then developers with
phenidone in the formula. I use a phenidone brew that I have formulated so
that I can shoot my Tech Pan at ASA 100. I now mix my brew in a 3 Litre
amount and dispense it into 8 0z amber glass bottles which I had my
pharmicist obtain thru his supply house. I fill the 8 0z bottles to the
absolute top from my three litre mix and add a few drops so that the liquid
rises above the top of the bottle ( something about surface tension that I
forgot from my college chemistry a half century ago ), I then carefully
screw on the top and there I have a bottle with brew and no air. I use one
bottle per roll in my SS hawes one roll tank. The results from the bottle
opened 6 months after the initial mix appears the same as the results from
the roll developed the day of the initial three litre mix. If This works
for Phenidone,  it should work for any developer. The bottles cost about
$60 per case but this is a one time expense.

Mendocino CA 

At 05:40 AM 1/3/02 -0600, you wrote:
>>Now I just need to get some of these 250ml bottles. Does anybody have a 
>>recommended vendor?
>250 ml narrow mouth bottles are the ones I bought from them.
>You'll need 19 of 'em, and then you'll have a little extra, but not enough
>to fill another bottle.  I bought 24 so I could break some and still not
>worry.  :)
>To unsubscribe, see

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In reply to: Message from Brian Reid <> ([Leica] Mark Rabiner's XTol tricks)
Message from Brian Reid <> ([Leica] Mark Rabiner's XTol tricks)