[pure-silver] Re: Selenium toning inconsistency
- From: "Eric Neilsen Photo" <ej@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 28 Jul 2010 13:11:05 -0500
we hadn't talked temp yet, but you may also see changes in tones based on
temperature of solutions. So it is best to stay somewhat consistent
including through the wash step. I am not talking just the toning solution
but also the temp of your developing line. Anything that changes the speed
of the process can be a factor.
I also like my selenium toner on the strong side but find that 1:9 gives me
more control for slight changes. It would of course depend on , to
completion, and I think that was the OPs goal.
Eric Neilsen
Eric Neilsen Photography
4101 Commerce Street, Suite 9
Dallas, TX 75226
www.ericneilsenphotography.com
skype me with ejprinter
www.ericneilsenphotography.com/forum1
Let's Talk Photography
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Lloyd Erlick
Sent: Tuesday, July 27, 2010 8:13 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Selenium toning inconsistency
At 02:31 PM 7/26/2010 , you wrote:
...
>Does anyone out there have a good handle on what makes changes in the
>final color?
>Developer changes? Dilution, composition?
>Selenium differences? Age, dilution, exhaustion?
>Paper differences? same paper but different batch?
>
>thanks for anything you might know about it.
>Dennis Purdy
>==============
July 27, 2010, from Lloyd Erlick,
Your list of possibles is pretty likely. Age of the selenium toner might
not be such a huge factor; mine is years old, and has occasionally stood
idle for many months. Exhaustion of the toner is a big deal; there is
little point in storing highly dilute selenium toner. I like mine fairly
concentrated, though, and that is expensive. I dilute selenium toner 1+5 in
distilled water, and I find that long before I suspect toner exhaustion,
solution carry-out on may sheets of paper has reduced the quantity to the
point I have to top up with fresh toner diluted 1+5. So exhaustion never
really enters into it.
Developer differences are crucial. For fine work I always start with a
fresh batch. Hopefully it will be the same as the previous time I mixed it,
eh?
But batch to batch differences in paper manufacture? I found MGW to be a
very reliable product. But definitely from time to time I noticed small
differences. Once I had a box of 11x14 sheets of MGW at the same time as I
had a box of larger sheets, I think 20x24. Both supposedly the same specs,
but the surface was different one t'other. One's surface gloss was glossier
than from the other box. I'm pretty sure I've noticed different reactions
to developer and toner over the millennia, but I've never made the side by
side comparison you've been doing, so I have nothing to point to. Frankly,
I'd suspect manufacturer batch discrepancies first for the problem you're
describing, but Ilford could easily respond that my difficulties were
mainly long ago when the product was only a babe.
Fixer mixed with distilled water; fixer based on sodium thiosulfate; fixer
with no hardener. I think these things help, but I can't quote numbers and
graphs.
regards,
--le
________________________________
Lloyd Erlick Portraits, Toronto.
website: www.heylloyd.com
telephone: 416-686-0326
email: portrait@xxxxxxxxxxxx
________________________________
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