MultiProfiler changing monitor calibrations ?

[Rhossydd]

I’ve just replaced my failed 5 year old Spectraview 1980 with a nice big PA271W.
My old European Spectraview software (aka basiccolor 4.1.22) turns out to work fine with the new panel. Profiling the panel with it reports excellent validation results using an iOne Pro spectro.

What’s now confusing me is the how the supplied MultiProfiler software works with the calibrated and profiled panel.
If I use MultiProfiler to load a different picture mode, it loads a new(Multiprofiler created) monitor profile along with some screen flickering which I assume is the software readjusting the monitor’s settings. Then the system profile gets changed to the new Multiprofiler created profile.

Does anyone understand what Multiprofiler is doing with the pre-existing profile and any hardware LUT corrections made by the Basiccolor software ? I briefly saw a message that MultiProfiler was loading existing settings.
I assumed that it was loading the existing settings and profile and re-using them as a programmable pre-set, but validating the output of MultiProfiler’s programmable setting gives worse results after running MultiProfiler.

Further; how does the inbuilt OSD options handle settings ?
Going to a different picture mode and back via the OSD also seems to reduce the overall accuracy of the display too, but so greatly as using MultiProfiler. (Curious,  I has assumed MultiProfiler was just a different GUI for the OSD, maybe not)

From all this I guess the most accurate way to work is calibrate and profile with Basiccolor (European Spectraview) and then not use MultiProfiler or the built in picture modes ?

I’d be interested to hear how others are approaching this and what their experiences with the different modes are.


 

[digitaldog]

My understanding is you don’t need basiccolor or the colorimeter unless you really, really, think its doing you any good as this is a self calibrating unit which is where MultiProfile comes to play. Its calibrated at the factory using a very high end spectroradiometer and its able to update its calibration.

[Rhossydd]

My understanding is you don’t need basiccolor or the colorimeter .... as this is a self calibrating unit which is where MultiProfile comes to play. Its calibrated at the factory using a very high end spectroradiometer and its able to update its calibration.

I'm surprised you'd say that.

I don't see how a display can be "self calibrating" without being able to measure it's own output.
The PA271 is the lower spec. model, the higher spec. Spectraview reference 271 expects to keep it's quality of output by measuring with an external hardware instrument (colorimeter or spectrophotometer).

Whilst the supplied ICC profile for the monitor is quite good, accuracy is significantly improved by proper calibration and profiling.

[digitaldog]

The monitor is factory calibrated using a lab grade color sensor. It is capable of tracking how colors change over time and temperature, brightness etc. It also has an internal color engine that allows you to dial in a specific luminance, white point, gamut etc. and it will figure it all out without the need for an external sensor. At least that is my understanding of the new PA series. Doesn’t mean you can’t nor should not use an external sensor but I’d also check to see from NEC how basiccolor plays into this idea.

[Rhossydd]

It is capable of tracking how colors change over time and temperature, brightness etc.

How can it do that without a sensor ?

It also has an internal color engine that allows you to dial in a specific luminance, white point, gamut etc. and it will figure it all out without the need for an external sensor.

It doesn't get it quite accurate from my measurements.

I’d also check to see from NEC how basiccolor plays into this idea.

Basiccolor 4.1.22 is the same software as supplied by NEC in Europe with their top of the range Spectraview variant of this panel.