Saturday, July 20, 2019

[Avid-L2] ISO New Techniques for Calibration by Eye

 

Tod writes:

" I routinely need to calibrate monitors quickly and without electronic tools,"

The problem is, you have human eyes. Our eyes and brain combo are awesome. They auto iris and auto balance for color. What this means is that you can never truly trust your eyes for color or luminance levels. That's why we depend upon tolls likes scopes for coloring and probes for calibrating. As you mentioned, lacking the blue channel setting on the monitor means you can't really fake the old adjustment techniques.. You need to depend upon an objective measurement system. An Eye 1 probe can be had for less than 300 dollars. 

Terence Curren
Burbank, Ca
AlphaDogs: We Unleash Your Stories


I am in search of recommendations for tutorials, patterns, and techniques for calibrating newer HDR designed monitors by eye, especially consumer class monitors. I routinely need to calibrate monitors quickly and without electronic tools, so I have a custom series of test patterns — Belle-nuit test pattern, grayscale, grid-alignments, SMPTE bars, and some tones. I use a blue filter to simulate the old blue-only techniques for SMPTE bars. This is okay but insufficient since they often lack the adjustment tools for the old fashioned approach (i.e. "color/chroma" and "hue" controls).

I just found this:
https://calibracionhd.com/step-no-1-settings/

This procedure (especially the color chart) worked better not only for a consumer monitor with limited controls, but also for an old Panasonic broadcast monitor with traditional controls.

Frankly, I don't know if I can do better, but I want to improve my understanding of monitor calibration and get a broader understanding of the limitations and biases of modern monitors.

Cheers,
tod

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Posted by: Terence Curren <tcurren@aol.com>
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