Marilyn,
Todays prehardened films can be processed at 85°F without damage, but
developing times become too short for even development.
If you add Sodium Sulfate (not Sulfite) to the developer, this helps
prevent swelling of the emulsion and also lengthens the development
times.
Go To: http://snipurl.com/h0kg-RE66M for info. (This
may appear blank on screen. Just save the file to your desktop.)
Or you could just use a dilute developer (1:4) for reasonable
developer times.
Dave
On Aug 15, 2005, at 9:37 PM, Marilyn wrote:
Hi All,
I need your help again, please.
Here in the southern California desert cold water coming from the
tap is sometimes 85 degrees. This is hot for processing black and
white film and the times/temperatures on the back of the chemical
bottles only go up to the temperature of 75 degrees. Is there a
formula for figuring adjustments for processing film in warmer
water? I can cool water down by adding cold water from a water
cooler, but I need such large amounts of water to process film,
that this becomes difficult.
Using bottled water causes temperature problems, too. Even at room
temperature the water is very warm.
And nooo - I can't switch to digital. I have students who want to
learn film and darkroom work (thank heaven for these students{:->)
Marilyn
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Let no one come to you without
leaving better and happier.
Mother Teresa
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