Re: IR light meter (preview scope)

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 27 Feb 00 at 22:12, ADavidhazy wrote:

> > I think this can be purchased for about $250-300
> > It has a 18 degree field of view, which was the largest that I had found.
> > Has anyone else tried a night vision scope for IR preview?
> 
> I have, and am sure many on this list have, used a camcorder with IR filter
> removed as a IR preview device. Of course the Sony NightShot (sp?) system works
> quite well and instead of having just a IR scope you also have a recorder built
> in and a zoom lens, etc. 
> 
> BTW, night vision or IR vision ... they are not always the same thing.

But when talking about night vision scopes, or better: light
intensifiers/amplifyers, they all are IR-sensitive, regardless of
1st/2nd/3rd Generation. Yet you still need a visual block filter to
make them see *only* IR (just like digicams).

Btw, Gen 3 really blows your socks of with a very opaque 
filter....ask for the glass filters they use for heavy searchlights, 
those are darker than #87C (won't even show a dazzling bright bulb, 
something that #87C will). Very impressive....but also quite 
expensive (and hard to get in Europe....you need a license for those, 
unlike the USA).

--                 
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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