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Re: Anyone used the "fixed" NightShot camcorders yet?


  • From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
  • Subject: Re: Anyone used the "fixed" NightShot camcorders yet?
  • Date: Thu, 24 Sep 1998 18:30:58 +0000

On 24 Sep 98 at 14:36, jason.revell@xxxxxxxxx wrote:

> As for the sensitivity of the camera I have tried on a few occasions to find
> out what it
> is, all I can say is that it extends well beyond 1000nm as we often use it
> with a BW094
> filter and it shows no sign of darkening.  If anyone knows what wavelengths
> it is
> sensitive upto I would be grateful.

I have seen quotes of 1100nm, which could explain why previous 
methods (HIE, ordinary b&w/color videocameras) didn't see as much 
through clothing in the first place.
Also note that typical image intensifiers (night vision) rarely 
exceeds 900nm either (with an increase through history, starting at 
700-800nm for the 1st Gen units).

 

- --                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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