Archived posting to the Leica Users Group, 2005/04/12

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Subject: [Leica] Re: LUG Digest, Vol 29, Issue 367
From: abridge at gmail.com (Adam Bridge)
Date: Tue Apr 12 15:38:14 2005
References: <200504101558.j3AFtjaM087029@server1.waverley.reid.org> <r02010500-1038-958D1F24AB8511D9B0BE001124733AA0@66.239.168.72>

I don't see why we can't compare them? It's the images that they
produce and the proof is what we see. As has been observed in a
variety of other messages there's all sorts of image processing magic
being done behind the scenes anyway. So it's really a
sensor/firmware/software combination that yields the final images we
BEGIN to work with on our computers.

Someone decried this in a post over the weekend, as I recall, and I'll
just observe that if the engineers who made the Hubble or Mars Rover,
or Cassini or even the spy satellites, are happy being able to feel
their images are reliable, then I'm going to have faith that what is
written to my camera's memory is faithful. Certainly I've never seen
anything that screams to me that "oh my god - there's a balloon in
this picture and there wasn't one there when I took the picture."
(GRIN)

Ultimately I think our camera sensors will be biological - we just are
better right now at physics than we are at biology. I'm thinking of a
camera which has the characteristics of an eagle's eye, for example,
or even a human eye. Our silicon sensors aren't a match for the
biological eyes at this point and eyes of very similiar geometry have
been created over vastly different evolutionary paths.

Maybe someday our descendents will be arguing whether their
squid-based sensors are better than raptor based sensors!

Adam

On Apr 12, 2005 12:03 PM, George Lottermoser <imagist@imagist.cnc.net> wrote:
> 
> Can we really compare CCD and Cmos sensors? I ask in all sincerity. It
> seems that each approach has pos and neg attributes. Do I understand
> correctly that the CCD has a color and sharpness advantage where the
> Cmos has a noise suppression and file size advantage (given the same
> size sensor)? Anyone know?
> 
> Fond regards,
> G  e  o  r g  e    L  o  t  t  e  r  m  o  s  e r, imagist