RE: filmscanners: My replacement 8000 is banding like the first one :-(

[Austin Franklin]

> Using a microswitch or an optical sensor to detect the
> zero position is less accurate than the resolution of
> most scanners, which makes multi-pass multi-scanning
> impractical with these scanners.

I disagree.  They don't have to re-home for each pass.  Once home as
ascertained, and then the starting place of the scan is known, the stepper
can reposition it self back there ad-infinitum.  There should be no
positioning errors.  The home switch is just to get a relative sense of
where the mechanism is, it does not have to be accurate.