Ed writes ...
> The exposure of the scanner for negative film is adjusted
> to to map the color of the orange mask to roughly white.
> This lengthens the green and blue exposure time relative
> to the red exposure time.
> ...
This reminds me of a problem I'm having with one LS adapter versus
the other.
A few weeks ago I was determined to make Vuescan 6.1 work with my
LS-2000. I experimented first with a Q60, but I got somewhat
frustrated, and I'm sorry to report I never got a true color scan.
What I noted 1st was the grays were not neutral (too much red, not
enough green) when I appled the Vuescan setting of Adobe RGB and
opened it into PS's Adobe RGB. I played with a number of settings and
never got it right. It is also a coincidence, if I took the Vuescan
"raw" scan, and profile-to-profiled it into Photoshop ("from one of
the Nikon provided LUT-ICM files "to" Adobe RGB), I got the same
colors ... WAAHH!!!
This is in contrast to Nikonscan nailing the colors perfectly,
neutral grays are right on, R=G=B. So, I returned to Nikonscan
(2.5.1). Now I have a frustration with NS ... its negative feeder
gives me perfect colors, but I noticed when manual focusing on
different areas, the focus units would be as different as 20 units.
So, I put the negatives in the strip holder and used the other
adapter. This fixes the focus (5-10 focus units), but the colors are
not the same. Geeez!! what is going on?? They are very close and
acceptable, but noticable. Why, given the same settings, would NS
read the same negative differently with different adapters? (this
wasn't a fluke, I could swap adapters, and these findings would be
consistent ... time after time). The feeder gives me perfect color
but doesn't hold the film flat, and the strip holder holds the film
flat but the colors are different. ... Weird!
Ed if you can give me a hint or two about how to neutralize the grays
... hopefully without bumping the R and G settings ... I'll give
Vuescan another try. (... but I do wish you'd consider adding the
"Adobe wide gamut" color space to your options ... I do see evidence
of Adobe RGB not capturing the entire gamut of a Q60 ...)
cheerios, shAf :o)
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