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[filmscanners] RE: Dynamic range
Hi David,
> >>>>>>>>>>>
> ... It is not hard to understand - 1dB is a small range (about
> 1.26 to 1),
> 100dB is a big range (10000000000 to 1). The range we are
> discussing is the
> range from MDS to max signal, which in scanner case is Dmax to Dmin.
> <<<<<<<<<<
>
> There are _two_ ways to talk about "Dmax to Dmin", you can talk
> about their
> absolute values (transmittances in the range 0 to 1, for example) as a
> density range or you can talk about the ratio of Dmax to MDS (or
> Dmin to MDS
> depending on the definitions) as the dynamic range.
Agreed.
> If you claim
> that these
> are equivalent, then Austin and I disagree, but if you think they are
> different, then we all agree. That's all there is here.
I know they are NOT the same.
Regards,
Austin
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