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Re: filmscanners: Nikon MF LED light source...
At 12:18 AM 7/14/01 -0400, Austin wrote:
>Nikon gurus... I believe we discussed that the new Nikon MF scanner uses
>LEDs as the light source, but does it use only one CCD row, and switch each
>color on/off and scan each row three times?
>Wouldn't that make it quite a bit slower than using a tri-color CCD?
It uses a 3-row *monochrome* CCD sensor. That's in the
specs on the Nikon website, I believe.
In normal operation it uses all 3 rows, but I believe
that's for speed's sake only.
There's a checkbox called "Super Fine Scan" in the
scanner driver. That causes the scan to use just one
row of the CCD. It also turns out that this feature
is *key* to eliminating the banding that Lawrence and
I have seen (at least on Lawrence's first 8000.)
Of course, it runs at 1/3 its normal speed when you
do that. The manual is a bit cryptic about why or
when you might use this "feature."
Using all 3 CCD rows, the Nikon is plenty fast.
Even on one row, it's no slouch. A heck of lot
faster than your Leafscan, that's for sure, either
So... I'm clearly annoyed that this euphemistically-
labeled feature has become a necessity (for certain
scans and situations) but am living with it. As long
as I *never* see banding again, I will live with the