Features of the calibrator i1 Display Pro

For those who process photos and video materials, the task of calibrating the monitor to display the color correctly is not the last. It is difficult to hope for good image processing if the brightness and colors that the monitor shows do not meet the standards (most often the D65 standard).

The choice of calibrators seems to be there, but in fact the tone is set by XRite.
With the release of the model i1 Display Pro, life seems to be getting better :-)
It costs relatively little, the result is normal .

But lately, on not very high-quality monitors (especially on laptop screens), I began to get strange profiles.
After calibration, the screen turned out to be noticeably yellower than necessary on the D65.
The other day I received a Vaio S top-end laptop model for calibration.
Top on the inside, but his screen is quite average. Not bad, but it is average.
I calibrate this machine and I get a clearly overly yellow screen. And here are the curves:

')
I take the good old i1 Pro (only 4 times more expensive than the i1 Display Pro) and get


Not so "extreme" curves and ... much more correct color of the screen.
Here is a surprise.
And on good monitors for graphics like NEC PA, I did not get this effect.
It turns out that the worse the monitor, the better should be the sensor for calibration.