Digital BW, The Print

On May 15, 2009, at 11:40 AM, pr_roark wrote:

> Some of us were also getting 3.0+ density readings with the coating  
> workflows that we experimented with -- particularly running the  
> glossy prints through the printer a second time to apply an overcoat  
> of glop.  I think the affordable spectros' inability to measure  
> accurately at those levels correlates well with our eyes' inability  
> to see any difference from about dmax 2.5 to 3 -- particularly in  
> typical display situations where reflections block our ability to  
> see into the deep blacks on glossy paper.  I'd keep an eye on the  
> pizza wheel marks and whether they are exacerbated by whatever  
> you're doing to reach those numbers.  I found the post-printing glop  
> application made the problem worse, for example.



Right. But we have devices costing more than a small car in our optics  
lab, and they don't make it to 3.0 either, they just make it a bit  
further beyond 2.5... which is why I said impossible or expensive,  
depending on the spec...

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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