[pure-silver] Re: Replentishing With New Developer
- From: Tim Daneliuk <tundra@xxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx, "bobkiss caribsurf.com" <bobkiss@xxxxxxxxxxxxx>
- Date: Fri, 14 Jul 2017 11:24:55 -0500
On 07/14/2017 11:01 AM, bobkiss caribsurf.com wrote:
SENT TOO SOON!!! Let's try this again!
DEAR KEN & TIM,
Way back from the mid 70s until I sold my NYC studio and moved to
Barbados in 93, I had a 3 1/2 gallon D-76 processing line in a separate film
darkroom. I had a careful replenishment regimen. As I went through,
literally, hundreds (and over 1000 some years) of rolls of b&w film (and many
sheets of b&w 4X5) it would have been very financially inefficient to use
anything except a replenished line. After the first few dozen rolls and
replenishing, what was in that tank was only D-76 in name as I am sure that
things had radically changed including build up of bromide ions and exhausted
dev agents. But the results got better with age so neither I nor my clients
complained.
One place I was quite careful was with print dev. If it hit the tray,
it was NEVER saved to be reused to make prints. If is was barely used, a
very few times I might have saved some to make contact sheets.
Anywhom, replenishing can work.
CHEERS!
BOB
Noted. I have experiment with using stock to replenish used dev. However,
I cannot comment on the results with any authority because - at the time -
I was using plastic containers for the developer which are porous to O2.
I have since switched over to all brown glass bottles of appropriate size
to avoid O2 in the bottle and permeation into the bottle. *** So, I'd
like to give it another go. However, if doing this substantially undermines
the integrity or behavior of the dev, I shall not bother.
*** Oddly, "appropriate size" turns out to be exactly the size used by
the local craft breweries to provide beer. Far be it from me to not
avail myself of such a supply of goods. The only thing needed - besides ...
um, "removing" the contents of the containers and then washing them
thoroughly, is replacing the caps with new polycone style caps.
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Tim Daneliuk tundra@xxxxxxxxxxxxxx
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