Re: SUBSCRIBE INFRARED-PHOTOGRAPHY SCOTT DONKIN

[Scott Donkin <photos@xxxxxxxxxx>]

At 02:38 PM 22/10/96 +0100, you wrote:

Hi Bobbi

Sorry about the late reply... been a bit busy of late.  8-)

>On Tue, 22 Oct 1996, Scott Donkin wrote:
>
>> >- Name:  Scott Donkin
>> Photographer of Artworks, especially paintings, using IR and UV techniques
>> past five years.
>
>What is the purpose of using IR for paintings? Isn't that how they are
>able to see if anything is painted underneath? 

Yes, pretty well.

IR light penetrates certain things better than the visible spectrum.
Certain paint pigments are more transparent to IR than others, so therefore,
you can use IR to act like a pseudo Xray.

Depending on the painting, you might be able to see other layers of paint
not visible to the naked eye, or even a signature, hidden by overpainting or
just years of dirt etc.

>Isn't IR supposed to be good for copying old documents? I
>think that I saw that somewhere in an article.

Yes, it can be.  It can also be good for detecting forgeries and alterations
to cheques (errm, that's 'checks' in American!).

>Just curious.

Hey, that's what we're all here for!  8-)

>>Due to the current economic situation, the light at the end of the tunnel
>> has been turned off until further notice.
>
>Yeah, it's been turned off here too!

Dontcha just hate that?  8-)



Cya...

   ______
   Sco||                E-mail:   photos@xxxxxxxxxx
                       Fidonet:   3:713/914.11

..due to the current economic situation, the light at the end of the tunnel
has been turned off until further notice.


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Topic No. 25