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[filmscanners] RE: scanner dmax discussion
> From: Karl Schulmeisters
>
> Except Austin, that's not how these devices are calibrated or tested. The
> universal (I have yet to see another one used but I am willing to be
> corrected) approach is to use a step tablet with density increments of 1/3
> of a stop and the 'dynamic range' is measured by seeing where the scanner
> ceases to differentiate between two adjacent steps.
I would assume that that limit would always be on the dark end, and that
instead of running out of bits, the steps would just disappear into the
noise. So noise would be the limiting factor, not the A/D resolution. Am I
wrong?
--
Ciao, Paul D. DeRocco
Paul mailto:pderocco@ix.netcom.com
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