Steve Shaw
10-16-2010, 08:38 AM
As I know the question of displays come up a lot I hought you might like to hear my review of the Panasonic TF 42PH20E Plasma displays as I have just spent 2 day really getting to grips with them, performing full calibration and profiling.
The results were very interesting.
Looking at just the underlying calibration the displays do not calibrate well at all.
The controls are either too course, or too fine.
The default settings are not at all accurate.
For example, we found the 2.6 gamma setting to actually be closest to 2.2.
And the colour gamut is far too large in Green, with Red a bit over gamut, and blue just about right.
In the end we got the displays as close as possible with the following basic setting:
(Note: peak white measurement with a quarter screen patch was 100Nits)
Picture Menu - Normalise
Picture Mode - Normal
Contrast 4
Brightness 0
Colour -15
Hue 0
Sharpness 0
White balance Normal
Colour Management off
Advanced Settings
Black extension 1
Input Level 0
Gamma 2.6
AGC Off
W/B High R -4
W/B High G 0
W/B High B -11
W/B Low R -2
W/B Low G 0
W/B Low B 10
Extended hidden menu (OSD Language & hold down enter for 5 secs to get into this)
Onscreen display on
Initial input off
Initial vol level off
Maximum Vol level off
Input Lock off
Button lock off
Remocon user level off
off-timer function enable
Initial power mode normal
ID select 0
Remote ID off
Serial ID off
Display size off
Studio W/B off
Studio Gain off
Slot power off
Power on screen delay off
Clock display off
All aspect off
Auto setup manual
Rotate off
Profiling and the final LUT
After getting these setting we had the best possible underlying calibration, but it was still not accurate.
A full profile of the display (1000 flats done with LightSpace CMS and Hubble) gave us a full profile of the calibration, showing where it's no accurate, and where it is.
Screen grabs of this can be provided if wanted (showing the gamma and gamut).0
The Gamma (grey scale) and Gamut (cube) were close, but green is over saturated (as is the case with most 'new displys' with the profile LUT generated bringing it back into alignment, as well as non-linear inaccuracies in the total colour space, seen by the points in the cube not being in perfect alignment (in the image that can be requested).
With the LUT installed in a HDlink Pro the calibration was near perfect, as the LUT corrects these issues.
I hope this info is of help.
Steve
The results were very interesting.
Looking at just the underlying calibration the displays do not calibrate well at all.
The controls are either too course, or too fine.
The default settings are not at all accurate.
For example, we found the 2.6 gamma setting to actually be closest to 2.2.
And the colour gamut is far too large in Green, with Red a bit over gamut, and blue just about right.
In the end we got the displays as close as possible with the following basic setting:
(Note: peak white measurement with a quarter screen patch was 100Nits)
Picture Menu - Normalise
Picture Mode - Normal
Contrast 4
Brightness 0
Colour -15
Hue 0
Sharpness 0
White balance Normal
Colour Management off
Advanced Settings
Black extension 1
Input Level 0
Gamma 2.6
AGC Off
W/B High R -4
W/B High G 0
W/B High B -11
W/B Low R -2
W/B Low G 0
W/B Low B 10
Extended hidden menu (OSD Language & hold down enter for 5 secs to get into this)
Onscreen display on
Initial input off
Initial vol level off
Maximum Vol level off
Input Lock off
Button lock off
Remocon user level off
off-timer function enable
Initial power mode normal
ID select 0
Remote ID off
Serial ID off
Display size off
Studio W/B off
Studio Gain off
Slot power off
Power on screen delay off
Clock display off
All aspect off
Auto setup manual
Rotate off
Profiling and the final LUT
After getting these setting we had the best possible underlying calibration, but it was still not accurate.
A full profile of the display (1000 flats done with LightSpace CMS and Hubble) gave us a full profile of the calibration, showing where it's no accurate, and where it is.
Screen grabs of this can be provided if wanted (showing the gamma and gamut).0
The Gamma (grey scale) and Gamut (cube) were close, but green is over saturated (as is the case with most 'new displys' with the profile LUT generated bringing it back into alignment, as well as non-linear inaccuracies in the total colour space, seen by the points in the cube not being in perfect alignment (in the image that can be requested).
With the LUT installed in a HDlink Pro the calibration was near perfect, as the LUT corrects these issues.
I hope this info is of help.
Steve