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Re: Accuracy of Instruments



Mike Strickler wrote:

Wait a minute: "In all probability"? The "expert eye"? And "I guess"?

Would you please be so kind to /not/ truncate quotes beyond recognition?

... but back to the facts:

The University of Wuppertal, the University of applied Sicences Stuttgart and the FOGRA carried out an investigation about inter-instrument differences between 8 instruments of 5 manufacturers and presented the results at the 4. Digitalproof-Forum 2004 in Stuttgart.

The probes (BCRA tiles, digital proofs and offset prints on APCO paper) were measured with a reference instrument before and after the test to eliminate probes damaged during the test.

They result of the investigation was a Delta E 76 of up to 2 to the average on 95% confidence level. I think one can argue in good conscience that these differences are visible and significant in process control and quality management.

Klaus Karcher
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 >Re: Accuracy of Instruments (From: Mike Strickler <email@hidden>)



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