Re: Sony Night Shot Digital VideoCams

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

On 24 Jun 99 at 19:52, Gary Beasley wrote:

> There is an infrared vision headpiece being manufactured now for use by
> firefighters that will see through smoke effectively. Also that capability
> of longer wavelengths to zip through fine particles is being exploited by
> infrared astronomers to peer into dusty nebulae to see star formation and
> into the galactic core to see the black hole monster residing there.

Note that the stuff used by fire-fighters are *thermal* infrared 
cameras. Those are now in the US$15k price range, instead of the 
US$25-50k with complex external cooling of the old days....although one still 
can buy tripod mounted high-resolution (0.1C) cameras of US$125k and 
up.

Btw, even in the old days they used IR to improve vision this way: one of 
my books mentions the use of IR-plates on board of ships, to see 
through fog. I am still puzzled by that remark, as the time between 
exposure and final print, or distance travelled, seems quite impractical....8-))


 

--                 
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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