[filmscanners] RE: Silverfast NegaFix > combed histograms?

["Paul D. DeRocco" <pderocco@ix.netcom.com>]

Sounds like it's really scanning in fewer bits, and the interpolation
arithmetic is smearing them around making it look like more bits. Are you
using PS to see the histogram?

Personally, I gave up on Silverfast after v4. Awful software--and awfully
expensive, too.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com

> From: Petru Lauric
>
> This is so bizarre! If I scan in AI in "48bit HDR color" (raw) mode at
> 4000dpi and then scan the resulting file in HDR in "48bit color" mode at
> 4000dpi =>  comb histo. If I scan from the same file in HDR at
> 1600, 3200, 3999 or
> 4001dpi (!)  =>  ok.
>
> If I scan in AI in "48bit color" mode at 4000dpi I once again get a bad
> histo, but if I scan at 3200dpi =>  ok.
>
> BTW, the histograms produced by Vuescan are much smoother and
> uncompressed. E.g.: a washed out pale blue sky (according to Vuescan) is
> rendered as white by Silverfast.

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