Re: filmscanners: Re: So it's the bits?

[Julian Robinson]

Exactly - better expressed than I would have put it.

Julian

At 01:12 12/01/01, you wrote:
>"Colin Maddock" <[EMAIL PROTECTED]> wrote:
> > Won't the 12bit a/d converter allow the information
> > between 4mv and the 1mv noise level to be resolved?
>
>It may, but I think Julian's point is valid which is that for
>a given sensitivity from the analog circuitry, changing the
>A/D won't make any difference to the density ranges
>that the analog circuitry resolves.  It only increases the
>accuracy with which we read the range of analog values
>that the CCD *does* resolve.
>
>Rob


Julian Robinson
in usually sunny, smog free Canberra, Australia