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Re: filmscanners: VueScan 7.2.11 Available
In a message dated 12/4/2001 0:11:17 AM EST, martin@wollongong.apana.org.au
writes:
> The Minolta Multi pro has a Point AF available. What doesa this mean
then?
All the Minolta scanners do the focusing in the host software. The
host software (i.e. VueScan) repeatedly reads a scan line, changing
the focus position after reading each scan line (without moving
the scan head). VueScan then picks the focus position where the
contrast is a maximum (the sum of the absolute values of the
differences between adjacent pixels).
Regards,
Ed Hamrick
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