RE: Re: IR receivers - plasma filters?

[Marcus Warrington <marcus.warrington@xxxxxxxxxx>]

Paul,

> Why would it need to be in a dark room?

Jim was being humorous. The original quote simply said "unexposed
film" (nothing mentioned about development), so as soon as it sees any
light it will become exposed film.

> must have been 20 years or so since I last took real film!

I still use "real" film (slide film) in a 1950's stereo camera
and a Russian Medium format camera (Sputnik) :)

Marcus

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
> Paul Gale
> Sent: 14 January 2009 08:44
> To: 'ukha_d@xxxxxxx'
> Subject: RE: [ukha_d] Re: IR receivers - plasma filters?
>
> Why would it need to be in a dark room? It is developed but never
exposed
> in the camera (so the film is black I guess).
>
> Sounds like a good idea - and yes, I was thinking about the bits at
the
> end of some old negatives - not sure I have any around, must have been
20
> years or so since I last took real film!
>
> Paul.
>
> > -----Original Message-----
> > From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> > Of Jim Noble
> > Sent: 13 January 2009 23:45
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] Re: IR receivers - plasma filters?
> >
> >
> > On 13 Jan 2009, at 21:33, Keith Doxey wrote:
> >
> > > Unexposed Photographic film negatives are also supposed to
be quite
> > > good as
> > > IR filters.
> >
> >
> > That's going to be tricky unless you have your telly in a
darkroom :-)
> >
> > The link talks about unexposed, developed /slide/ film (which
will
> > remain opaque to visible light).
> >
> > It's probably easier to use fully exposed, developed negative
film
> > though (there's usually some on the end of the roll when you get
a
> > 35mm film back form being developed!)
> >
> > Jim
> >
> > ------------------------------------
> >
> >
> >
> >
> >
> > __________ Information from ESET NOD32 Antivirus, version of
virus
> > signature database 3763 (20090113) __________
> >
> > The message was checked by ESET NOD32 Antivirus.
> >
> > http://www.eset.com
> >
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus
> signature database 3763 (20090113) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
>
>
> ------------------------------------
>
>
>

------------------------------------