It looks like the latest firmware has fixed a few of the issues with the 4.5 Picture Adjust > Picture Mode setting.
Summary
4.5 Picture Mode “Through” now works correctly – ie, it no longer changes the greyscale position NOR change the Contrast/Brightness setting. So for those people requiring “by Source input “ control of upscaling, it is possible to make use of the onboard video processing WITHOUT affecting all the colours.
Streaming is also fixed in the same way.
So Custom, ISF Day, ISF Night, Direct, Through and Streaming are available without worrying about calibration issues.
The
BAD NEWS – Do NOT use Game or Cinema – as these are both still affecting the greyscale.
Game – very BLUE and cold pre-set. Obviously, if you like it for Games, fine.
Cinema – Warm/yellow tint – in general, many would look to use Cinema as a “calibrated” start point. For this 809, it is very misleading. If you like it, fine, but it is totally inaccurate. In fact if you have a calibrated video chain, and then use either of these two presets, you will have wasted your time and money.
For those interested in the detail:-
The
Direct Picture Mode is my calibrated BR Player to Display video chain, and the reference here.
I have included some background info for those not familiar with “Calibration Guide for Dummies”. (If not, why not?
)
Graphs:
The RGB graph:
“Top Part” shows the greyscale response of my display from black (left) to white (right). The correct combination of RGB will produce the correct grey (no colour) for all the intensities of light output. Ruler flat RGB at 100% is ideal.
The “Bottom Part” shows the Delta Error – which is a measure of the accuracy to the REC709 HD standard. Below 10 is good, but below 4 is excellent (your eyes cannot resolve the colour changes with a Delta E of less than 4).
The Direct RGB Graph shows accurate colour response for greyscale from black to white .
The CIE Graph
The Black triangle shows the REC709 standard, and the white triangle is the Display response. Colours mixed with varying amounts of R,G and B can produce ALL the colours within the triangle. As you can see, grey is in the middle. If this is accurate, and the primaries and secondary’s are accurate, then it falls into line the other colours will be accurate too. In the middle are two blue ovals – these show the Target grey value, D65. The larger circle is 10 Delta E, with the small oval being the ideal 4 Delta E.
You should be aware of the Z axis – coming out of the CIE graph. This is the intensity of the light output. So D65 black to white D65 goes through all the grey points D65 out of the screen. So all colours, and all intensities contained within the white triangle are able to be produced.
Brightness/Contrast:-
The highest value of White was measure to 102cd/m2 (30ftL) – good for Direct Display panels.
Conclusion:-
The Direct picture mode shows a good calibration – unaffected by the 809.
Picture Mode “Through” BEFORE Firmware change 5th July 2012.The RGB graph:
This clearly shows a change in relationship between RGB - Red and blue separating from Green from Black to White (left to right). The Delta E is ~20.
The CIE Graph
This clearly shows the cluster of white measurements moving away from the blue oval, and towards yellow.
Brightness/Contrast
The highest value of White was measure to 91cd/m2 (26ftL) – a reduction in light output compared to Direct.
Conclusion : -
The image would be reduced in light output, affecting Brightness/Contrast and Dynamic range. And last 6 months’ worth of advice was NOT to use Through.
Picture Mode “Through” AFTER Firmware change 5th July 2012.The RGB graph:
Within the limits of my measurement system, the results are identical to Direct mode.
The CIE Graph
Within the limits of my measurement system, the results are identical to Direct mode.
Brightness/Contrast
Within the limits of my measurement system, the results are identical to Direct mode.
Conclusion : -
The manual says that Through and Direct differ just by being able to set the resolution for Through. This is now the case. Yippee….
For completeness – the other pre-set picture modes.
Game AFTER Firmware change 5th July 2012The RGB graph:
This clearly shows a change in relationship between RGB - Red and blue separating from Green from Black to White (left to right). The Delta E is >10.
The CIE Graph
This clearly shows the cluster of white measurements moving away from the blue ovals, and towards Blue.
Brightness/Contrast
The highest value of White was measure to 80cd/m2 (23ftL) – a large reduction in light output compared to Direct.
Conclusion : -
The image would be severly reduced in light output, affecting Brightness/Contrast and Dynamic range. It leaves the image very blue/cold.
Cinema AFTER Firmware change 5th July 2012The RGB graph:
This clearly shows a change in relationship between RGB - Red and blue separating from Green from Black to White (left to right). The Delta E is ~20.
The CIE Graph
This clearly shows the cluster of white measurements moving away from the blue ovals, and towards Yellow.
Brightness/Contrast
The highest value of White was measure to 75cd/m2 (22ftL) – a large reduction in light output compared to Direct.
Conclusion : -
The image would be severely reduced in light output, affecting Brightness/Contrast and Dynamic range. It leaves the image with a yellow tinge and warm. Very inaccurate.
Streaming AFTER Firmware change 5th July 2012The RGB graph:
This clearly shows a change in relationship between RGB - Red and blue separating from Green from Black to White (left to right). The Delta E is ~20.
The CIE Graph
This clearly shows the cluster of white measurements moving away from the blue ovals, and towards Yellow.
Brightness/Contrast
The highest value of White was measure to 101cd/m2 (29ftL) – within the accuracy of my measurements, identical to Direct
Conclusion : -
I am not sure of an application for this pre-set – but at least it is neutral to the image.
Edited by wl1 - 7/7/12 at 1:20pm
