Chuck Norcutt wrote:
> ... The opposite dimension (where the stepping motor is moving the scanning
> bar) might conceivably be handled differently but I suspect it's probably
> easiest to simply do full resolution there as well and average all 16 pixels.
>
This is clearly not true of scanners I have and have had. From flatbeds
where the light/sensor bar moves across the fixed subject to film
scanners there the film moves past a fixed light/sensor position.
At lower resolutions, the moving part moves faster ( and sounds quite
different ) and the result is available in much less time.
Whatever theoretical ideas one may have, sensible market design takes
into account practical aspects of those for whom time is limited and/or
expensive.
The only "scanning" I've done where that was true was using the 5D with
Oly bellows, 80/4 Auto macro lens and slide copier.
Moose
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