Archived posting to the Leica Users Group, 2005/07/19

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] over fixed?
From: chs2018 at med.cornell.edu (Chris Saganich)
Date: Tue Jul 19 15:33:12 2005
References: <8FA056F3-D483-468F-B462-E05E47CCA01E@earthlink.net> <9b678e0507161922bdf1804@mail.gmail.com> <02c601c58bd6$663a82e0$2501a8c0@chartertn.net> <9b678e05071817392f9a3093@mail.gmail.com> <004b01c58c9e$cd005680$2501a8c0@chartertn.net> <42DD617E.1070806@adrenaline.com>

I've only used water fix with with fix TF4 with HC110.  Become acid 
free!!  I think acid seems a harsh environment for precious negatives.

chris

At 04:24 PM 7/19/2005, you wrote:
>I use HC-110 1:63.  This dilution puts me in the 9-13 minute
>range for most films/EI's.
>
>Will a water stop do it for me?  I worry, just because HC-110 is
>known to be such an active developer.
>
>Also, I use pretty common fixers - Ilford Rapid Fix and Sprint
>Speed Fixer. Easy to find here in DC.  Are these "acidic fixers" ?
>
>Thanks.
>
>Scott
>
>John Black wrote:
>
>>
>>
>>>John,
>>>Your experiments prove that switching to a neutral fixer is a good
>>>thing.  The typical acidic rapid fix will in fact serve as a very mild
>>>bleach.
>>>
>>>
>>
>>This is quite true.  The only reason to use an acid fix is to kill the
>>developer quickly.  Developers that are low energy (and low pH) like 
>>diluted
>>Xtol do not require instant quenching like Rodinal, TMax and the various 
>>D76
>>derivatives.  If your developing time exceeds 8 minutes, a water stop is 
>>all
>>that is needed.
>>
>>JB
>>
>>
>>
>>
>>_______________________________________________
>>Leica Users Group.
>>See http://leica-users.org/mailman/listinfo/lug for more information
>>
>
>
>_______________________________________________
>Leica Users Group.
>See http://leica-users.org/mailman/listinfo/lug for more information

Chris Saganich, Sr. Physicist
Weill Medical College of Cornell University
New York Presbyterian Hospital

Ph. 212.746.6964
Fax. 212.746.4800
A0049 



In reply to: Message from don.dory at gmail.com (Don Dory) ([Leica] over fixed?)
Message from jblack at ambio.net (John Black) ([Leica] over fixed?)
Message from don.dory at gmail.com (Don Dory) ([Leica] over fixed?)
Message from jblack at ambio.net (John Black) ([Leica] over fixed?)
Message from scott at adrenaline.com (Scott McLoughlin) ([Leica] over fixed?)