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[filmscanners] RE: scanner dmax discussion



Hi Berry,

> > OK, so
> > here is an exercise for you.  The CCD has an output voltage of
> 0-2.5V, with
> > a noise of .001V.  How many bits do you need to "sample" the
> data with such
> > that the entire dynamic range available from the CCD data is
> captured, and
> > why?
>
> 12?

Let's see... 2.5 / .001 = 2500, and the nearest binary power that'll hold
2500 values is 12...so I'd say that's correct.

Regards,

Austin

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