On 12 Jan 2004 at 10:53, Eckhard Stephan wrote:
> *SNIP*
>
> > > I am using a Cannon EOS D60 camera with a Hoya R72 filter and was
> > > wondering if you could please give me some advice on how to obtain
> > > usable infrared images. I am currently trying to manipulate
> > > shutter speed and aperture to obtain an image but seem only to get
> > > blank images. Does the sensor on the Does the D60 have an IR
> > > filter built in that will prevent it being used for this purpose?
> > > If not, do you have any suggestions as to why I am unable to
> > > produce usable images?
>
> *SNIP*
>
> I'm afraid you won't have much luck using a D60 for IR. I'm not sure
> whether the camera has an IR blocking filter. But I do know that I
> never managed to get usable IR pics with my D60. :-( Probably the poor
> Ir performance of the D60 is due to its CMOS sensor. While CCD sensors
> are known to be sensitive far into the IR range (which makes an IR
> blocking filter necessary to avoid colour shifts in non-IR
> photography), CMOS sensors have a sensitivity range similar to that of
> the human eye. They can't see IR.
Btw, does anyone know what was in the Canon/Kodak DCS3, released in
1994?
This CMOS-stuff only became available with the EOS D30, right?
And/or: what does the Kodak DCS 520/560 (aka Canon D2000) and EOS
1D(s) use? (ignoring the possible problem of IR-block filters)
(I do get some kind of purple/reddish image on my DCS3, trying a
whole bunch of IR-pass, UV-pass and (IR+UV)-block filters (in every
imaginable permutation), but I am still not sure whether I see UV or
IR....8-))
(it's not a clean image anyway)
Note that the Canon/Kodak DCS3ir was the *only* dedicated IR-camera
ever (Nikon/Kodak had 2 generations (one earlier), Canon/Kodak only
one).
--
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
