"gowanoh" <fac_187@[EMAIL PROTECTED]
> wrote in message
news:ue_Fi.6997$JD.3114@[EMAIL PROTECTED]
>I think what the original post is about is why camera manufacturers are
not
>doing more to increase the pretty lame exposure latitude of current
digital
>sensors.
> It is not clear that the new D3 sensor has any greater latitude or is
> accompli****ng its rumored ISO feats with improved data processing.
> RAW formats allow, with much post exposure manipulation, the creation of
> images with a greater apparent than real increase in latitude. You are
> really bringing up the underexposed areas and trying to hide the noise.
> You can do nothing with overexposed areas because of the limited
exposure
> latitude of digital sensors to over-exposure, which has been re****ted to
> be as little as 1/10th of a stop. Sekonic uses that figure to try to
sell
> exposure meters so who knows if it is true or not. However it is obvious
> from experience that current dSLRs have very, very limited latitude to
> over-exposure.
> Current in camera jpeg processing algorithms truncate image data to 8
bits
> which in addition to limiting color gamut also limits exposure latitude
> even further.
> There have been a few announced patent filings that relate to this
issue,
> including the Kodak modification of the Beyer filter which, if it works,
> would probably benefit low end more than high end sensors.
>
>
They have or at least Fuji has. However at best the S3 and S5 are a nitch
market. I think the current sensor technology has given about all it can
in
exposure range, noise and resolution. Sure companies are going to keep
milking it for ever buck they can get, but I think 10MP is about the limit
for the current sensors (if you want something tangible in return). If you
just want bragging rights then they should be able to push these to 50 or
60MP in a 2 oz compact point and shoot. Just don't expect much in picture
quality.
They might be able to push the current sensors more if they put in more
powerful processors and more memory for the camera to work on the images
with. Then something like in camera Noise Ninja would be possible and this
would let you get a little more out of the current technology without
giving
up a whole lot in final image quality.
Personally however I don't think that the sensor technology is the only
thing that is about at its useful limit. I think the whole concept film
camera with digital filling has went about as far as it can go as well. We
really need to start looking at ways of doing away with the shutter,
lenses,
etc. All of this type of stuff should be on the sensor. This would give
you
a very powerful camera in a very small package. But, this won't happen
anytime soon either. Greedy companies like milking outdated technology for
every penny they can get. That is why most cars sold in the world still
use
gas even though that technology like current camera technology (the basics
of it) are almost 100 years old and over 100 years old. Got to milk that
cow
until dust comes out.
Somebody!
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