Adjusting development for temperature

wrote in message
news:65b348fd-1314-4287-a185-
Hi, JJS. Did you have any recommendations for cold water processing?
A check of the Manual I have shows no specific cold water
formulations. However, it did list a tropical developer that can be
used to 32 deg C, useful for when summer comes.

Same here. My SPSE manual has tropical processing but nothing useful for
cold. This afternoon I am going to the shop to work on the 8x10" enlarger,
and I have a couple of boxes of books. I will try to find the cold-temp
processing article I read years ago. If I find it I will post pertinent
info.

"John" wrote

Same here. My SPSE manual has tropical processing but nothing useful for
cold.

Low temperature film development, from the "Photo-Lab Index" 1983.

http://www.nolindan.com/UsenetStuff/...eloping001.pdf
http://www.nolindan.com/UsenetStuff/...eloping002.pdf

TTBOMK, the Photo-Lab index has been out of print since '94 though
many are available from Abe's Books etc.

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/index2.htm
n o lindan at ix dot netcom dot com

"Nicholas O. Lindan" wrote in message
...
Low temperature film development, from the "Photo-Lab Index" 1983.

http://www.nolindan.com/UsenetStuff/...eloping001.pdf
http://www.nolindan.com/UsenetStuff/...eloping002.pdf

Thanks for coming through, Nicholas!

That D8 developer is some powerful stuff!

"John" wrote in message
m...
"Nicholas O. Lindan" wrote in message
...
Low temperature film development, from the "Photo-Lab Index" 1983.

http://www.nolindan.com/UsenetStuff/...eloping001.pdf
http://www.nolindan.com/UsenetStuff/...eloping002.pdf

Thanks for coming through, Nicholas!

That D8 developer is some powerful stuff!



I note that on those pages, it mentions using the developers at 30F, 5F, and
even below zero temps. Out of curiosity, under what circumstances would one
need to develope film with chemicals below freezing, and further, what about
fixing and washing? Are there low temp products for that? And if the answer
is no, you just use higher temps for fixing and washing, then why not use
the same higher temps for developing and avoid the possible reticulation?

This question is part of my "Learn something new everyday" campaign.
Yesterday I learned something new from an adult website-- wanna know what it
was?!

"Ken Hart" wrote

Out of curiosity, under what circumstances would one need to develope film
with chemicals below freezing

http://www.kodak.com/US/en/corp/features/endurance/
I don't know that Hurley had to use his developer at -40F/C
but I imagine it wasn't 68F.

further, what about fixing and washing?

Details, details ... I imagine using glycols or sea water.
I've never had to do it, all I know is what is on those two
pages in the lab index.


Yesterday I learned something new from an adult website-- wanna know what
it was?!
No, I'd rather leave it up to my imagination.

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/index2.htm
n o lindan at ix dot netcom dot com

Sea water is excellent for washing film and prints. Worry about the salt
deposits later. Or rinse off the salt by peein on the negatives after
drinking a sixpack of Rice Beer (That's Budweiser). The Bud has no effect on
the negs, but you don't care as much.

"John" wrote in message
m...
Sea water is excellent for washing film and prints. Worry about the salt
deposits later. Or rinse off the salt by peein on the negatives after
drinking a sixpack of Rice Beer (That's Budweiser). The Bud has no effect
on the negs, but you don't care as much.



And, don't forget, you'll get 75% more keepers if you analyze your shots
after a 6-pack of good Canadian beer...

Take Care,
Dudley

On 4/12/2008 10:17 PM Dudley Hanks spake thus:

"John" wrote in message
m...

Sea water is excellent for washing film and prints. Worry about the salt
deposits later. Or rinse off the salt by peein on the negatives after
drinking a sixpack of Rice Beer (That's Budweiser). The Bud has no effect
on the negs, but you don't care as much.

And, don't forget, you'll get 75% more keepers if you analyze your shots
after a 6-pack of good Canadian beer...

You mean like Maudite? (Great name: "the damned one".)


--
The best argument against democracy is a five-minute
conversation with the average voter.

- Attributed to Winston Churchill

"David Nebenzahl" wrote in message
s.com...
On 4/12/2008 10:17 PM Dudley Hanks spake thus:

And, don't forget, you'll get 75% more keepers if you analyze your shots
after a 6-pack of good Canadian beer...

You mean like Maudite? (Great name: "the damned one".)

It is now time to praise great beer names.
The award for:
surging forth against the ravagaes of an onomonpea
to BLATZ beer, USA.
blatently not of the German Purity Law (and proud of it)
to BUDWEISER USA, genetically engineered rice as primary
fermenter

On Apr 12, 10:58 pm, "Nicholas O. Lindan" wrote:
"Ken Hart" wrote

Out of curiosity, under what circumstances would one need to develope film
with chemicals below freezing

http://www.kodak.com/US/en/corp/features/endurance/
I don't know that Hurley had to use his developer at -40F/C
but I imagine it wasn't 68F.

Thanks for the reference to D8. As for the temperatures that Hurley
encountered, if you read through the presentation, you will see the
following (note that he is developing glass plates):

"Darkroom work rendered extremely difficult by the low temperatures it
being -13°C outside." The temperature in the darkroom, near the engine
room, is just above freezing. "Washing [plates] is troublesome as the
tank must be kept warm or the plates become an enclosure in an ice
block.... Development is a source of annoyance to the fingers which
split & crack around the nails in a painful manner."