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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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RE: filmscanners: Nikon Scan & VS Negative dynamic range



On Thu, 6 Sep 2001 22:11:48 -0400  Austin Franklin (darkroom@ix.netcom.com) 
wrote:

>  The 8 bit data represents only "a" dynamic range for THAT scan, not a
> "specific" dynamic range.  That is why a slide scan that has a dynamic 
> range
> of say 3.6 can map into 8 bit data, as well as a B&W negative that has a
> dynamic range of 2.2 can map into 8 bit data.

Ah right, sorry, I thought you were resurrecting the 'scanner ODR has 
nothing to do with bit depth' proposition. Yes, provided the ODR can be 
mapped into the available bits at the ADC, you can remap the data any way 
you like subsequently.



Regards 

Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info 
& comparisons




 




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