Archived posting to the Leica Users Group, 2001/09/05

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Subject: [Leica] Re: Tetenal color developer tablets
From: Herbert & Lee Kanner <kanner@acm.org>
Date: Wed, 5 Sep 2001 12:53:35 -0700

I have it as word of mouth from people at Bear Images in Palo Alto (a 
JOBO dealer) that the promised tablets will make up something like 
125 ml. of solution.  This may be fine for a drum processor, but I 
process two rolls at a time in a stainless steel tank, which wants 
500 ml.

Two points:

1) The keeping properties of the solutions in the Tetenal monopack 
C41 are quite good.  Working solutions protected from oxidation by 
their gas spray (Protectan): minimum 6 weeks.  The figures for the 
stabilizer and bleach-fix are longer.  They don't commit with respect 
to partially used solutions--with fast film, the 500 ml can be used 
three times--but I have kept the stuff, partially used, for several 
weeks and have seen no problems with the processed negatives.

2) Tetenal makes a powder kit intended for traveling professionals. 
It does not include stabilizer, and, of course, has the disadvantage 
that one has to worry about dust from the powdered developer.

Herb

- -------Originial Message--------
Date: Wed, 5 Sep 2001 05:54:50 -0500
From: Henry Ambrose <henryambrose@home.com>
Subject: Re: [Leica] Tetenal color developer tablets
Message-ID: <20010905105213.VZHV593.femail37.sdc1.sfba.home.com@[65.1.114.25]>
References:

Last year Tetenal announced a dry chemistry in tablet form for C41
process called COLORTEC C-41 PHOTOTABS. I contacted Jobo USA (US importer
for Tetenal) and they told me to watch for the product to be brought to
the US this summer. Summer has come and is almost gone and still no
tablets. I am interested in them because they solve a common problem for
low volume users, that  being liquid chemistry going bad before you can
use it!

Read about them here:
http://www.tetenal.com/daten/is017uk.htm
(scroll down to COLORTEC C-41 PHOTOTABS)

Has anyone had any experience with these products?

Thanks,
Henry Ambrose

- -- 
Herbert Kanner
kanner@acm.org
650-326-8204