> This seems reasonable.  BTW, does anyone have any idea or know of any
> reference as to how the sensor will age?

Hi Steven,

   this would interest me as well! It would be interesting to know
   somebody with an early kodak DSLR! I will try to ask at local
   agencies how their first Nikon D1 were doing now.

   I think there are few things to look out in aging:

   1) colour dyes. Change over time AND change with exposure to light.
   I really don't know what the mosaic colour filters are made of,
   although Kodak might have revealed it in one of their technical
   PDFs.

   2) the "transistors" themselves in the CCD/CMOS. In analogy to
   computers, whose CPUs can develop something like hotspots over time (especially if
   overclocked or ran at higher voltages). These hotspots are areas of
   worse conductivity? I am not an expert, and it's been a while since
   I read that article. So the imaging chip itself could age as well,
   with hard usage.

   3) the chips responsible for the image processing and other
   "computer" tasks - well, the first computerised cameras (AE1?,T90, F4,
   even LX has some little chips inside, no?) are still working, so
   this shouldn't be much of a problem if they are designed properly.

   4) the other things are just the same as in film cameras - shutter,
   AF, ...

If somebody with more technical expertise knows about the first two
points, tell us please! When things get more comlex, just more bad can
happen... I want a Luddite digital!!! :)

Frantisek

Reply via email to