http://www.xrite.com/product_overview.aspx?ID=1912&Action=support&SupportID=... Inter-instrument agreement: 0.4 ∆E94* average, 1.0 ∆E94* max. (deviation from X-Rite manufacturing standard at a temperature of 23ºC (73.4ºF) on 12 BCRA tiles (D50, 2º)) Short-term repeatability: 0.1 ∆E94* on white (D50,2°, mean of 10 measurements every 3 seconds on white) Might be time for both sites to run the free i1Pro diagnostics. Andrew Rodney http://www.digitaldog.net/ On Feb 25, 2014, at 11:38 AM, Mike Stewart <mstewart@embassygraphics.com> wrote:
Hello All: Is there some "rule of thumb" regarding spectrophotometers and inter-instrument agreement? A situation can and has appeared where we are using an I1Pro measuring the IdeAlliance colour bar. When we read the chart/bar and have the printer read the very same chart using the same brand of spectrophotometer, same Rev., same settings, same backing, etc. we get different readings. Readings where our proof may "Pass" and their measurements will generate a "fail". Obviously this is an issue. What can be done about it?
Thanks Mike Stewart