[filmscanners] Re: NikonScan negative question (was Dynamicrangequestion)

["" <lists@lazygranch.com>]

Just to reiterate, most of the time you are just altering the post
procession of the raw scan. That is, more light didn't get through,but
the raw scan was interpreted differently.

One advantage to scanning slide film is there is less "interpretation"
of the raw scan. Vuescan has a nice calibration feature for the IT8. If
you calibrate then pick "neutral", the scan pretty much looks like the
film.

Ed Verkaik wrote:

>From: "Dieder Bylsma" <scanners@spacemoo.com>
>To: <verkaik@sympatico.ca>
>the only problem is that Nikon's scanning software is quite aggressive on
>the
>white points/black points and loves to make things super-contrasty, despite
>what I've set in its preferences for black/white points of 0.01% each.
>
>
>
>I don't seem to have that problem on my 4000ED with NS4 on XP. But I do
>notice that green tends to crowd the white point end, so I set my Gain down
>by .15 for that channel.
>
>Gain is (I presume) the only way to affect how much light gets through the
>film. For dark inages but with a maxed out bright region, it's tricky but
>you can increase Gain and then twist the curves to prevent burnout, ending
>with more shadow detail. However, I find NikonScan rather good at estimating
>the available detail. I rarely get more out of a dark image without losing
>it to noise anyway.
>
>Ed Verkaik
>
>
>
>
>

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