On Fri, Dec 15, 2006 at 10:42:52AM -0800, Moose wrote:
> Nils Frohberg wrote:
> > just to prove that I'm still here from time to time, how about some
> > CN scanning advice? The &^%$# orange mask ist a real pain :)
>
> Try scanning as color neg film. There should be a setting for color
> neg, as opposed to positive/reversal/slide. The scanning software is
> designed to compensate for the orange mask in that mode.
Yup, doing that. But still, this is only a computation on the raw
scanner data. (No, not a simple 'inverting', I know :).)
> I don't know what scanning software you are using. Orange masks are
> not all the same, but any software should get you close with the
> correct film type setting. With VueScan, you can scan a piece of blank
> frame to set the mask compensation individually for the film you are
> scanning. Better yet is to create a color profile for the film.
I created a color profile, this works fairly well. But it can't recover
clipped raw data.
> > I tried exposing the scan such that the red channel is as far to the
> > right as possible without clipping, but then green and esp. blue are
> > so dark that there's a lot of noise. I now set the scanner to expose
> > longer, so that the green channel is far right, almost clipped. That
> > means that the red channel is clipped more than halfway. The
> > pictures to look better though. But I don't want to loose any (too
> > much) data, so I'm worrying a bit about that red channel.
>
> You shouldn't have to do any of this stuff.
Hmm, I'm not really pleased with e.g. VueScan's results in 'auto'
mode. Overexposing the red channel looks a lot better (although I'm
probably loosing a bit of shadow detail). That's why I thought I should
ask how others are handling this.
Nils
--
The Moon is Waning Crescent (22% of Full)
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