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RE: filmscanners: 35mm filmscanner choice



On Sun, 29 Jul 2001 19:38:14 -0400  Mike Duncan (mgduncan@esper.com) wrote:

> ppi is sampling rate.  Under ideal conditions, the maximum lpi is half 
> the
> ppi.  In practice, lpi is 1/3 to 1/4 dpi or even less if the optics or
> focus are poor.  For a theoretical discussion see
> <http://www.normankoren.com/Tutorials/MTF2.html>.

..or indeed the section about resolution at my site  :)

Regards 

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




 




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