On Wed, 17 Jan 2001 10:37:58 +0100  Oostrom, Jerry ([EMAIL PROTECTED]) wrote:

> Now I just have to see if I can also see the limitations of gamut, of which
> you say they are much more apparent than granularity differences between
> color spaces used in 24/48 bit files. I have already seen some sort of
> posterization occur in the sky with editing certain high-bit scans of
> negative film in ProPhotoRGB where the scene was a heavy backlit one, with a
> tower in front and a bride in the shadow of that tower. Of course this could
> very well be caused by other factors as e.g. limitations of my scanwit.

'fraid so. For all the theory, hardware will impose its own limitations. What might be 
millions of colours can turn into a fraction of that, and as soon as you start pulling 
'em around in software anything can happen. It's no criticism of the Acer, I've done 
extreme things to high bit files from several scanners and sooner or later even 16bits 
ain't enough.

Regards 

Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & 
comparisons

Reply via email to