We could have easily used Patterns to put up the white, measure with the meter, enter the Fine-Tune, and called it a day, but it wouldn't easily allow for a validation of the result and the charts we were able to provide on the thread.Ĭlick to expand.David great information, thank you! I appreciate this and I am sure many on this thread do as well. Many meters don't require Windows, but the software we happened to be using to plot and chart the data is Windows based. 004 on the y- in this case using an improper meter could add more error than out-of-the-box. On the sample MacBook Pro XDR display, the error we measured out-of-the-box was approximately. They found that the difference between a 5nm spectral bandwidth meter and a 2nm spectral bandwidth meter can have an error (difference) of +/. While not on the Pro Display XDR, we have had some colleagues test PFS Phosphor displays and the error between spectral radiometers that may occur. When profiling, or calibrating a colorimeter, the most common method is to use a matrix calibration, which measures WRGB, this takes into account the filters and gamut of the display and without the company disclosing what they used to calibrate that profile it is difficult to be certain of the accuracy of the profile of course, you could test it, but if you have a spectral radiometer why waste the time! If a colorimeter is properly profiled with the MacBook Pro Display XDR, it should have fairly good accuracy, but a generic profile may have larger error than desired. Of course, this isn't only on the XDR Display but any display that uses PFS Phosphor. A meter with lower bandwidth may not have the resolution to accurately measure the spike. Because of this spike, it is important to use a spectral radiometer with enough spectral bandwidth to properly categorize the display's performance. In theory, you can use any meter to measure the display, the question is, 'how accurate will that measurement be'? The MacBook Pro XDR uses a PFS Phosphor based LCD display which has spikes in the red (see attached spectral power distribution).
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