Re: [OM] Re Infrared images

[Jan Steinman]

Doris Fang quoted, wrote:

> On Sat, 23 Sep 2000, Jan Steinman wrote:
>
> >  This is not something you can do with standard 35mm technology.
> >  So-called "infrared film" is really only sensitive to what is called
> >  near-infrared, which would be many hundreds of degrees hot.
>    Normal IR film  can tell the difference between the heat  radiating
> from a plant and that of the stone behind it. It can tell the difference
> between temps from someone's lips as opposed to their cheeks, Jan.
I'd like to respectfully disagree, Doris. I believe such effects are 
due entirely to *reflected* IR. I'd challenge you to take such photos 
in complete darkness.
--
: Jan Steinman <mailto:Jan@xxxxxxxxxxxxxx>
: Bytesmiths <http://www.bytesmiths.com>

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