[filmscanners] Re: Color Misregistration (Especially PolaroidSprintscan 120)

["Arthur Entlich" <artistic-1@shaw.ca>]

This is abnormal and you need it serviced.  It could be a slipping film
carrier, or another problem, but this is not normal.  The registration
should not even be a full pixel off.  This is almost definitely a
mechanical flaw. I can think of some very strange computer problems that
might cause this, but look for a horse, not a Zebra (unless, of course,
you live in Africa or a game reserve or zoo). ;-)

Art

focus@adnc.com wrote:

> I'm interested in hearing about how good color registration is on
> filmscanners in general, especially on the Polaroid Sprintcscan 120,
> which I just bought, and the Nikon 8000, which I apparently should have
> bought.
>
> On my Sprintscan I am getting color misregistration of up to 8 pixels
> (at 4000dpi) in the scan direction. It's not a constant
> just-shift-the-channel-in-Photoshop kind of thing, but a varying
> phenomenon - on any given 6 x 7 there will be several bands in perfect
> register, then the registration will get worse to the point of 6 - 8
> pixels off, then gradually get better again. This repeats about a
> half-dozen times over a piece of 6 x 7. It happens in the Polaroid
> Insight software and in Vuescan, connected by FireWire or SCSI, on two
> different computers (beige G3 and Blue G3).
>
> I sometimes do big enlargements off of very tight crops, and this
> misregistration causes color fringing that is totally unacceptable to
> me. My dilemma now is whether to let them send me another Polaroid, and
> hope it works better, or just get my money back and try a Nikon 8000.
> The Infrared dust/scratch feature on the Nikon holds little charm for
> me; multi-sampling is cool, but not $1000 worth of cool. I'd rather have
> the Polaroid, but not if this is the best they can do on color
> registration.
>
>


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