visualizing Streamers

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>

Tesla list wrote:

> Original poster: "David Sharpe by way of Terry Fritz
<twftesla-at-qwest-dot-net>" ><sccr4us-at-erols-dot-com>
 
> Mine has night vision (Sony), will try with IDR in about
> 2 weeks...

	Sometimes there is a filter in there that 'removes' IR...
 
> Regards
> Dave Sharpe, TCBOR
> Chesterfield, VA. USA
 
> Tesla list wrote:
 
> > Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

> > At 09:10 AM 2/22/2002 +1300, you wrote:

> > >Yes. An infrared pic of some streamers would tell the story.
>>>Has anyone with suitable gear done this? Can one buy 35mm IR
>>>film?

	Used to be available.  Dunno where/how now.
	Web Search?

	ALSO:
	IR film (unless changed) is ALSO sensitive to 'all
	other' light (plus UV....).  For a 'pure IR' rendering,
	needs a lot of filtering.

	Also, the 'IR' spectrum is broad, and individual sensors
	look at only part(s) of it...


> > Any of the Handycams (Sony 8mm) with "night vision" do this...

> > Cheers,

> >         Terry

	best
	dwp