[pure-silver] Re: IR in cold?
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 28 Dec 2007 05:17:55 -0800
----- Original Message -----
From: "Ray Rogers" <earthsoda@xxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Friday, December 28, 2007 2:46 AM
Subject: [pure-silver] Re: IR in cold?
--- Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
Normal IR film is not sensitive to heat rays although
it can be fogged by excessive heat. Those pictures
that Kodak used to print showing glowing hot items
were made using very special very long wave IR film,
not the usual stuff sold mostly for special effect
pictures.
???
Maybe I don't recall seeing those pictures, but
I do recall seeing a KODAK picture described as being
taken in total darkness using two, hot, ironing board
irons as the "light" source, 45 degrees from the
subject, one on each side of the lens-subject axis,.
I think it was made with Kodak's High Speed
Infrared... (well, it might have been an aerial film,
but I seem to remember it as their regular 35mm
infrared film)
Does anyone know for sure?
I think it said an exposure time of 8 minutes was
used.
Ray
Kodak used this same picture a lot of times. My
understanding is that it was taken with special film
sensitive to very long wavelength IR and not with standard
IR film which is not sensitive to heat. I no longer remember
the source. I rather think this picture has mis-led a lot of
people.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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