RE: Digital Infrared Photography

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

On  2 Feb 99 at 11:26, Alistair I. Paul wrote:

> I have a Sony DSC F1 and it records IR through a Hoya R72 Infrared filter ok
> trees and grass come out snowy on it.

Btw, apart from the darker Hoya RM90 (Wratten #87A equivalent, 
although it leaks more visible light than even a #87), has anyone 
ever heard about a Hoya RM100?
I have been contacted about that one at least once, and perhaps even 
twice, but it is not listed in any of my brochures, past (HAMA) or 
present.

> I also have a Baxall CD9772 colour/mono cctv camera which has no IR cut
> filter on the CCD It works fine with the R72 filter and gives good results.
> used in normal daylight it gives anomalous colour rendition and under
> tungsten lights it distorts colours extreamly. A young lady friend who has
> flame red hair comes out as pure white on screen under tungsten lights, she
> was not happy with the effect, and that was without the filter.

You said 'witch' didn't you?
Admit it....;-))

> Compared with other CCD cameras I have, the filter on the CCD of the baxall
> is clear whereas the others (colour ccd's) have a blueish tint to them.
> You have got me thinking now.... where is my scalpel???

Going to check what blood looks like in IR?....;-))

 

--                 
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'!]
*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************