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Re: IR-flash (was: darkroom -Reply -Reply

  • From: Scott Donkin <photos@xxxxxxxxxx>
  • Subject: Re: IR-flash (was: darkroom -Reply -Reply
  • Date: Fri, 01 Nov 1996 15:10:26 +1100
At 12:57 PM 23/10/96 +0100, you wrote:

>Please note that #89B is far from opaque; even when mounted on a lens
>one can see quite clearly through it. Providing bright sunlight of
>course. 

And that is the key... providing the intensity is right up there.

Checking the transmission curves for that filter, you'll see that there is a
little transmission into the visible portion of the spectrum.  Therefore,
yes, if you pump enough light though it, it will be visible to the eye.


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. 2