articles/Monochrome/themonochromeissue-page6
by Mile McNamee Published 01/04/2006
Metamerism is influenced by a number of factors including ink, paper and the actual ink mix density. In the graph, the data are actually quite good, but both the K3 Ink (4800) and Permajet Monochrome Pro are ahead of UltraChrome (7600) on Premium SemiGloss. The effect of paper in discussed later in this feature.
The key feature of QTR is its ability to create, install and use curves, which govern the relative proportions of each "black" ink in the system. It is not worth typing out the entire method as it is freely available and comes with the software down load. Suffice to say that you print out a tone scale (see image) measure it and feed back the information to the
Below: The basis of the QTR is to mix together two different tone inks to control the final output colour. The interface is both clever and sophisticated - all for free! software/driver. In use, you blend a mix of warm and cool tone variants to create the "neutral" of your choosing. The control that you can achieve is impressive.
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