U3014, difference between CAL1 and CAL2 mode?

Question

In the Color Space preset mode for U3014 30' monitor, what is the difference between CAL1 and CAL2? I tried both but couldn't tell a diff.  I know they're both pre-calibrated mode that comes with the monitor.  Any infos will be appreciated.

yumichan · Accepted Answer

100% sure.Look, in these monitors internal calibration it's done with a 3DLUT. Native gamut is greater than AdobeRGB (in reds).Standard and Custom modes comes with native gamut and native WhitePoint (native GBLED whitepoint, cooler than D65), Custom mode allows yo to set your desired white point.At factory, 2 calibrations are stored as LUT3D and they are NOT editable by users (but can be corrected in GPU): AdobeRGB: R, G & B coordinates (mostly red coordinate), White point and 2.2 gamma. The 2º is not very precise.sRGB: R, G & B coordinates, White point and sRGB gamma . The 2º is not very precise.AND as a feature, monitor allows yo to store 2 x LUT3D values: CAL1 and CAL2 but it only works with Dell Color Calibration Solution (DCCS), and DCCS only works with i1DisplayPro.CAL1 and CAL2 are just 'USER SLOTS' for storing LUT3D calibrations, nothing more.At factory settings they should behave as Standard mode.

yumichan · Answer

You are wrong. Factory 'calibrated' (to be more precise, 'gamut emulation modes') modes are sRGB and AdobeRGB presets. CAL1 and CAL2 are just for 'storing' user LUT3D calibrations. At factory settings they should be like 'Standard' (native gamut and native WP ~7000K).

U3014, difference between CAL1 and CAL2 mode?

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