On 16/08/06, Toralf Lund <[EMAIL PROTECTED]> wrote:

> They way I read the patent (but I haven't studied it very closely), it
> addresses certain specific conditions where the (dark) noise is
> particularly significant. I'm quite sure the method could improve the
> usable range under those conditions; the dynamic range of the actual
> sensor is essentially a direct function of the noise, isn't it? However,
> I also suspect that these conditions were not really taken into account
> when the bit depth was chosen, so the dynamic range would not increase
> beyond the one associated with 12 bits - if you know what I mean. (When
> we discussed exposure setup etc. I while back, I speculated that sensor
> designers might be "defensive" in the sense that they chose the A/D so
> that its full range would be usable even under worst-case scenarios, but
> based on information I found on the net, I concluded that they aren't.)

Probably damn close until you implement cryogenic cooling.

-- 
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
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[EMAIL PROTECTED]
http://home.swiftdsl.com.au/~distudio//publications/
Pentax user since 1986, PDMLer since 1998

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