Digital BW, The Print

On Apr 30, 2009, at 7:19 AM, robert49brake wrote:

> A while back I was looking for a used UV Densitometer and kept  
> running into cheap densitometers on ebay.  They were mostly 2nd  
> party branded and had come as OEM equipment included with large  
> commercial presses.  No documentation, no software, same disclaimer:  
> powers up fine but unable to test (No Software!)  Never did find out  
> what they were designed to measure and no idea of what software  
> might be needed, or cost, just for a simple density measurement and  
> definitely no profile making software without spending hundreds.

ICC profiles cannot be built with a densitometer, at least not the  
kind the ICC defines, since color values are needed. Densitometers can  
linearize color ramps, but they can't actually tell what color they  
are... so densitometers can create channel curves, but not color  
profiles.

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...


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Datacolor
www.datacolor.com/Spyder3




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