Filmscanners mailing list archive (filmscanners@halftone.co.uk)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[filmscanners] Re: Silverfast NegaFix > combed histograms?
Tony Sleep wrote:
>One has to wonder if Silverfast could be cheating here, processing
>internally in 8 bits, but reading and outputting a 16 bit file. Polaroid
>Insight used to do this.
>
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.
Petru.
----------------------------------------------------------------------------------------
Unsubscribe by mail to listserver@halftone.co.uk, with 'unsubscribe
filmscanners'
or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or
body
|
