on 14/01/03 14:09, mark harwood wrote : > Can anyone suggest a cause for this? Yes. Other than the sharpening being set too high there is always the question of base density and relative base densities which can be manually set on most high end scanners. What the Minolta is doing is trying to keep specular high lights, mapped to 0 form an already subtracted base + fag density yet then erroneously mapping adjacent pixel densities at he Dmin. I've seen this on most film scanners and may or may not be something you can fix. In fact all CCD scanners have a jump in these zones as the dynamic range is exceedingly great at the end points , where as PMT's great advantage is the smooth response and dynamic headroom without clipping data. -- Neil Snape http://mapage.noos.fr/nsnape
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