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[filmscanners] Re: Difficult scan problem



That's a good idea and one I should probably have thought of.  I think my
brain is turning to mush comparing all these scanners etc. ;-)

I will check to see if there is a range of values between 210 and 255.  I
will try and use the built-in ColorSync calibration on the Mac to get a
better image but the dealer is a bit touchy about doing things to his
monitor (although he should thank me if the calibration is wrong).

Thanks for the advice.

Simon

----- Original Message -----
From: <TonySleep@halftone.co.uk>
To: <simon@sclamb.com>
Sent: Tuesday, April 16, 2002 3:32 AM
Subject: [filmscanners] Re: Difficult scan problem


> On Mon, 15 Apr 2002 23:51:20 +0100  Simon Lamb (simon@sclamb.com) wrote:
>
> >
> > When I scanned the image I found that all pixels from about 210 to 255
> > were
> > showing as black and I could not get any detail to show, even though I
> > know
> > it is there from a scan done on a Sprintscan 120.  The histogram shows
> > that
> > the detail should have been there.
>
> The fact that there are pixels of values 210-255 says there is a range of
> luminosities, and if you can't actually see them, to me it suggests a
> problem with monitor calibration on the system. But check : what happens
if
> you run the PS eyedropper over the pixels which look black, do the
> luminosity values change?
>
> Regards
>
> Tony Sleep
> http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner
info
> & comparisons
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