Eizo CS2740 only 98% sRGB coverage with DisplayCal callibration

[Tim]

Hi.

I calibrated my Eizo CS2740 using DisplayCal, Davinci resolve and an i1 DisplayPro. However, I only seem to be getting 98.0% sRGB gamut coverage (and 69.7% Adobe RGB and 72.1% DCI P3) with a max delta E of 2.26. This is weird to me, as per my understanding it should be 100% sRGB and <2 delta E (not to mention the Adobe RGB and DCI P3 percentile).

My flow is:

Decklink mini monitor 4K > SDI > Microconverter 12G > HDMI > Eizo CS2740.

My monitor is set up in:

Color Mode: sRGB
Brightness: 120 cd/m2
Gamma: 2.4
Gamut: sRGB

DisplayCal is set up as:

Settings: Video 3D LUT for Resolve (D65, Rec. 709 / Rec. 1886)
Correction: Spectral: LCD CCFL family (AC, EIZO, HP)
Whitepoint: Chromaticity coordinates 0.3127x and 0.3290y
White level: As measured
Tone curve: As measured

In DisplayCal I also built a 3D lut (33x33x33) for my MicroConverter 12G. Settings are:

Source colorspace: Rec709 ITU-R BT.709
Tone Curve: Rec. 1886
Rendering intent: Absolute colorimetric with white point scaling
Input encoding: Full range RGB 0-255
Output encoding: Full range RGB 0-255

Am I doing anything wrong? Am I missing something? The weird thing is, is that my 300 EUR LG monitor I use for UI has 99.7% sRGB, 86.6% Adobe RGB and 91.3% DCI P3 with a max delta E of 2.46.

Soooo.. if anyone knows anything or can help me in the right direction, it would be highly appreciated! Thank you 🙂

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[Vincent]

Hi.

I calibrated my Eizo CS2740 using DisplayCal, Davinci resolve and an i1 DisplayPro. However, I only seem to be getting 98.0% sRGB gamut coverage (and 69.7% Adobe RGB and 72.1% DCI P3)

Meaningless since it depends on measurement configuration (*)

with a max delta E of 2.26.

It would be user’s fault. As data it is meaningless since you do not provide data where are placed the highest errors.

Color Mode: sRGB
Brightness: 120 cd/m2
Gamma: 2.4
************Gamut: sRGB******************************************************

DisplayCal is set up as:

Settings: Video 3D LUT for Resolve (D65, Rec. 709 / Rec. 1886)
***********Correction: Spectral: LCD CCFL family (AC, EIZO, HP)************
Whitepoint: Chromaticity coordinates 0.3127x and 0.3290y
White level: As measured
Tone curve: As measured

(*) which is wrong. It’s a WLED PFS. Use Stuart Pointon or community EDR/CCSS corrections for ColorNavigator and DisplayCAL.
It’s recomended to leave CN7 to native gamut, just correct white level & white point. Gamma optionaly since it coudl be done on LUT3D for Resolve… depends on how many colrospaces do you want to simulate with the same CALx in Eizo Hw.

Am I doing anything wrong? Am I missing something?

Yes, explained above

The weird thing is, is that my 300 EUR LG monitor I use for UI has 99.7% sRGB, 86.6% Adobe RGB and 91.3% DCI P3

Bet the uniformity os not the same. +-3% coverage is mostly meaningless specially if you are measuring wrong, as you did

with a max delta E of 2.46.

Same as in previous quotes. Meaningless bc we do not know overall behavior.

As a single picture without numbers, CIE a*b* plot vs reference shown in report gives a hint for many things. Contrast ratio and greyscale L, a & b deviations to reference are the first things to look for.

Also any claim should have attached an HTML report, not a sector screenshot, since HTML report verification usually shows common user error & misconfiguration.

• This reply was modified 1 year, 8 months ago by Vincent.
• This reply was modified 1 year, 8 months ago by Vincent.

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