[pure-silver] Re: IR in cold?
- From: Bogdan Karasek <bkarasek@xxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Thu, 27 Dec 2007 17:40:04 -0500
Hi all,
If I remember my elementary physics, unless you are at absolute
0°Kelvin, there is always heat being given off. It might seem to you
that it's cold outside, but that's because you body is warmer than the
surrounding environment. That's why a heat pump will work in the winter
time, it sucks the heat out of the cold air, and the outside air around
the heat pump just gets colder. Hot and cold are very relative terms.
Can a physicist in the group confirm this.
One of the more prominent photographers in Montreal, Linda Rutenberg,
published a book of photos of Mount Royal, our hill in the center of the
city. At that time she was working exclusively in IR and many of the
photos in the book are snow scenes on the Mountain. So I don't see the
cold as being a problem.
If the film is fogged then I would assume a light leak.
Cheers,
Bogdan
Janet Cull wrote:
Well, I'll go ahead and show my ignorance. Does cold weather, in any
way, limit the use of infra-red film?
I've tried a few rolls of IR (Maco) film some time back, but never with
success. Every roll has been fogged and I don't know why. I load it
in dark, into my Hasselblad, and take it out in darkness. I'm assuming
there's nothing wrong with the Hassy. I have problems with no other
films, so that a safe assumption?
I thought I'd try more Maco, but it's cold out. (Are you laughing?
This sounds ridiculous maybe, but I really don't know. Seems someone
told me something like IR film is "heat activated")
Please excuse my ignorance.
Janet
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________________________________________________________________
Bogdan Karasek
Montréal, Québec bogdan@xxxxxxxxxxxxxxx
Canada www.bogdanphoto.com
"I bear witness"
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