Monitor with CMS Controls

[Wallboy]

I’m likely getting a new i1Display PRO soon and calibrating all my monitors again. My ~8 year old i1Display LT/2 is probably no longer accurate and also the entire plastic casing snapped off somehow.

I  also bought a new monitor that has the ability to adjust the normal Red, Green, Blue sliders you would normally adjust as a first step along with brightness. However it also has CMS controls Hue/Saturation sliders for the primaries (RGB) and secondaries (CMY) that you typically find on a TV or projector (except this monitor has no brightness adjustment for each color). Is it best to leave these alone and let DisplayCAL correct them in the LUT/ICC? Or should they also be adjusted prior to get a best possible starting point?

Thanks for any help

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[Florian Höch]

However it also has CMS controls Hue/Saturation sliders for the primaries (RGB) and secondaries (CMY) […] Is it best to leave these alone

Generally, yes, as these controls have a tendency to distort the device response and make it less well-behaved.

[Wallboy]

Alright sounds good. Is targeting 2.2 gamma still the norm for sRGB? I know in REC 709, BT.1886 has become the “standard” for many.

[Florian Höch]

Note that calibration tone curve only affects non color managed content (i.e. most of the desktop and applications under Windows still).

[Wallboy]

Are the curves/color corrections not built into the ICC profile and when Windows loads and DisplayCAL loads the corrections in? I was under the impression corrections are made from the ICC and VCGT and would apply to everything unless overridden in software that allows you to choose other correction profiles/etc.

[Florian Höch]

You’ll only get color management in color management capable applications (e.g. Photoshop). 1D calibration is part of adjustment (prior to profiling).

[Wallboy]

So is the gamma curve always applied to everything? It’s just the colors that get adjusted if the particular application supports color management?

[Florian Höch]

Basically, yes.

[Author]

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