Keith Schreiber (jkschreiber@worldnet.att.net)
Fri, 19 Mar 1999 04:00:28 -0700
I have periodically tested my oxalate/dichromate developers by printing
step-wedges for the whole range and have not yet found a significant change.
It's about time to check them again and I will report back with the results
hopefully next week sometime.
Keith
Keith Schreiber
jkschreiber@worldnet.att.net
-----Original Message-----
From: V6263@aol.com <V6263@aol.com>
To: alt-photo-process-l@sask.usask.ca <alt-photo-process-l@sask.usask.ca>
Date: Monday, March 15, 1999 3:48 PM
Subject: replenishing dichromate for pt developer
>I use sodium dichromate as contrast agent in oxalate developer for pt/pd.
>Lately I have had the problem that in reprinting successful images I now
have
>to go several steps higher in contrast or add hydrogen peroxide to equal
>previous contrast. Has anyone had this problem or explored replenishing the
>dichromate? Does it wear out? Thanks.
>V. Schrager
>
This archive was generated by hypermail 2.0b3 on Sat Nov 06 1999 - 10:09:04