Archived posting to the Leica Users Group, 2001/03/06

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Subject: Re: [Leica] X-TOL 1:3 times??
From: Mark Rabiner <mark@rabiner.cncoffice.com>
Date: Tue, 06 Mar 2001 12:09:48 -0800
References: <11CA8AEBA4D7D0119FFF00805F29965D01C558DE@EXCHANGE_NT1>

Richard Edwards wrote:
> 
> Mark,
> 
> Do you have the guts/bravado/moxie to
> run TMAX 100 or TMAX 400 in XTOL 1:3?
> 
><Snip> 
> Piece of cake -- What could go wrong?
> 
> -A L
> 
Not at first! I started out with a wimpy 1:2.
The pro down the street chastised me as he was already doing 1:3.
I capitulated.
I did run 16 rolls in a two liter tank of Tri x 1:2.
Did get some diachronic fog.
2000/3= 666 The Beast!!!! 
666/15= 41.66 instead of their recommended 100
so i was going with less than half what their lawyers said was cool to do!

now i do 1:3
2000/4= 500
and i don't roll back to back so much so it's more like 8 rolls in a two liter
metal tank.
500/8= 62.5 mls instead of their recommended 100
and definitely no problem with Tri x or Delta 100 and 400 and Neopan films.
The delta 3200 again i feel needs 1:1.

mark rabiner