I suspect the whole issue is much simpler. :-)
Even according to Nikon Support - the lost of instant Analog Gain
preview was somehow related to alternation of the original (system's
default) preview pan window in their software, that's all.
They admit that fact, advised me to get the preview's window size back
to its original, otherwise just reinstall the software.
As to the gain amount - I did not notice any relation to teh actual
amoutn of gain to be altered - I did 0.1 down to almost maximum in
eitehr direction and lots of in-between - once having instant preview
it does it, once not having it it rescans anyway.
regards, Alex
--- Jawed Ashraf <Jawed@cupidity.force9.co.uk> wrote:
> Hmm, I think the instant analog gain preview is only if you make a
> small
> adjustment, or make an adjustment that the data in memory can
> accommodate.
>
> Alternatively, now I think about it, it might be dependent on the
> exposure
> of the frame (on the film, itself) versus the absolute exposure.
>
> E.g. say the average neg exposure counts as "0" and coupled with that
> the
> average scan exposure is "0". Now if you have an under exposed
> frame, say
> -1, the scan exposure might be compensated automatically by the
> Scanner AE,
> e.g. +1.
>
> When you fiddle with the master gain, say increasing it by 0.5, with
> the
> normal frame you might find that the scan held in memory accommodates
> the
> +0.5 shift in exposure.
>
> But, when you try the same for the under-exposed frame, the data in
> memory
> doesn't allow for the adjustment without re-scanning.
>
> Well, that's my theory...
>
> Put another way: I've noticed in the past that NS was inconsistent in
> this
> regard, and with 4, so far, it has re-scanned each time I adjusted
> master
> gain. The test frame was under-exposed, as far as I could tell (this
> frame
> also scans, at default, with a huge cyan colour cast, which is why I
> was
> using analog gain control in the first place!). This frame scanned
> with the
> same cast under NS 3.1.2.
>
> I noticed a small change in the ICE cleanup of a scratch in a test
> frame,
> but it seemed mildly worse than before...
>
> I noticed GEM has more notches on the slider, but I'm now convinced
> that
> Neat Image is the way to go, leaving GEM off.
>
> Jawed
>
> > -----Original Message-----
> > From: filmscanners_owner@halftone.co.uk
> > [mailto:filmscanners_owner@halftone.co.uk] On Behalf Of Alex Z
> > Sent: 19 January 2004 16:57
> > To: Jawed@cupidity.force9.co.uk
> > Subject: [filmscanners] Re: Nikon Scan 4
> >
> >
> > Yes, I took a plunge and downloaded the version 4 along with
> firmware
> > update for my LS-40. Did the update and new NS4 installation
> (though
> > firmware upgrade looks a bit scary - watch out any possible
> > disturbancies to a computer or power supply during the process -
> may
> > cause severe damage to device that can only be resolved at repair
> > facility).
> >
> > Apparently seems to be quite similar to version 3.1.2, probably
> except
> > of few user interface minor changes, has an option for ICE forth
> > feature
> > (though is blocked for LS-40/LS4000) and reprotedly (by
> > Nikon) features
> > certain (I guess minor) improvement in software ICE algorithms.
> >
> > Also, I finally got back instant Analog Gain preview (in previous
> > version I once a while ago had a bad luck of altering original
> preview
> > pan window, since then each time I altered Analog Gain, pressing
> > Preview would always engage preview scan rather the just instant
> > software simulation. Couldn't get back that no matter what I tried
> > (except of reinstalling the software, even contacting Nikon support
> > didn't help).
> > Now, with NS4.0 I got back that - very convenient and fast.
> >
> > Alex
> >
> > --- Jawed Ashraf <Jawed@cupidity.force9.co.uk> wrote:
> > > Anyone who's using an LS40/4000/8000 found any benefits from
> using
> > > NS4, so
> > > far?
> > >
> > > Jawed
> > >
> > >
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