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[filmscanners] RE: scanning 'dark brown' colours from a negative?



Dieder

Hmmm. I use Supra 400 a bit myself & haven't noticed the problem with my
Minolta Scan Dual II. It would be really interesting to know what scanner
Randall is using. Have you seen the problem with any other film types? I'm
assuming you know the neg prints OK - could it be a processing lab error?
The problem could of course be a software bug or hardware fault.

Any chance you could email a jpg or perhaps post one on a website (for the
benefit of anyone who follows up on this thread)? It would be interesting to
see how bad the problem is.


Some suggestions to try, one at a time. Sorry if any of these appear to
insult your intelligence but I guess we're all guilty of making the odd
silly mistake:


Double-check all the settings in VueScan are as default except the film
settings. The settings on the color tab being the most important of course.
The help file is pretty good in explaining

Check that what you're seeing isn't an out-of-gamut warning from your
editing software.

Reinstall NikonScan

Reinstall VuScan (it uses manufacturers driver with some/all scanners so try
this second). NB I suggest you download & install the latest version. Your
problem may be a bug that's been fixed.

Try scanner on another PC

Try another scanner on your PC

Try getting someone else to scan your neg



I hope one of these suggestions sorts it out for you. I know how much of a
timewaster problems like this can be.


Best regards


Mike Brown











> -----Original Message-----
> From: filmscanners_owner@halftone.co.uk
> [mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Dieder Bylsma
> Sent: 14 March 2003 21:25
> To: mike.brown@mindblown.com
> Subject: [filmscanners] RE: scanning 'dark brown' colours from a
> negative?
>
>
> >Sounds like a really odd problem which I haven't personally
> encountered I'm
> >pleased to say. I wonder what films / scanners you are using?
>
>
> Nikon LS-4000ED with VueScan, NikonScan and the source of the images
> is Kodak Supra 400.
>
> >It appears that the blue and green values are transposed for the
> areas that
> >come out magenta. (Brown is composed of red and green with virtually no
> >blue -in R:G:B values 255:255:255 is white and 85:60:0 is brown.
> Magenta on
> >the other hand is red and blue with virtually no green.)
> >
> >I assume orange isn't turning magenta so I doubt it's a mismatch between
> >colorimetry of the film & sensor. If you're using Vuescan you could try
> >tweaking the green up a bit to see if you can get an acceptable
> result. (And
> >if you're not using it download a trial from Hamrick.com. I found it much
> >better than the software that came with my Minolta scanner.
> Vuescan produces
> >a far more accurate colour balance, mostly due to it having presets for
> >different films.)
>
> hm. velly velly intelesting. :-)
>
> Same frame of film produces the same bizarre colours with each
> software. This isn't the first time I've had difficulties with dark
> shades of brown and scanning. But I've also noticed this on some
> types of digi-cameras too and always with dark brown colours.
>
> wonder how i'd go about fixing it?
>
>
>
> Dieder
>
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