Archived posting to the Leica Users Group, 2010/01/11

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Subject: [Leica] [OT] Scanning Kodachrome help
From: hopsternew at (Geoff Hopkinson)
Date: Tue, 12 Jan 2010 14:49:35 +1000
References: <> <>

Give it a try folks. I've been experimenting with editing this shot both
with CameraRaw and normal Photoshop tools, usings masks, adjustment brushes,
graduated filters, WB sampling etc etc. Its the most peculiar colour
combination that I've run across.
The effect with the two discrete areas of above and below waterline is as
though each is very different, almost two shots combined. Some of it is
reflection from sky and rock and water but its just plain odd. The clipped
highlights from the scan still have the same magenta leaning too suggesting
it has really been stomped on by the scanning software. At least I haven't
been able to produce something believable.
My only other approach would be a re-scan with some other software. More
options to try in Vuescan of course.
2010/1/12 Mark Rabiner <mark at>

>  > Folks,
> >
> > I've been working on scanning some Kodachrome slides using mostly Vuescan
> as
> > that is the one I am most familiar with. I've calibrated my scanner with
> an
> > IT8 target I bought from Silverfast in both Vuescan and Silverfast. I've
> > calibrated my MacBook Pro's screen with a Datacolor doohickey.
> >
> > One group of slide has been very hard to scan. I can't seem to get rid of
> an
> > magenta'ish cast. The pictures was shot on an overcast day [Edith Cavell
> > glacier, Jasper National Park (Canada)]. The original slide has a
> beautiful
> > milky green tone to the water and the snow banks was almost white -
> definitely
> > not magenta.
> >
> > If I correct for the snow, the water turns grey. If I correct for the
> water,
> > the magenta cast gets worse.
> >
> > I've tried this in both Silverfast and Vuescan. Both gives similar
> results.
> > It's driving me crazy.
> >
> > Here is an example of a very bad scan from Silverfast.
> >
> > <>
> >
> > Any suggestions?
> >
> > Regards,
> > Spencer
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See for more information
> You could scan it in raw and just bring it out in Photoshop.
> But!
> Why not just select command B and desaturate the magenta a bit?
> You could even select that one area of the snow which is the only problem
> but I don't think you'd need to.
> Oh! No Photoshop perhaps!
> Mark William Rabiner
> _______________________________________________
> Leica Users Group.
> See for more information


In reply to: Message from spencer at (Spencer Cheng) ([Leica] [OT] Scanning Kodachrome help)
Message from mark at (Mark Rabiner) ([Leica] [OT] Scanning Kodachrome help)