Allora, cercando in giro per informarmi sul black crush ossia il fenomeno per cui i dettagli più scuri finiscono annegati nel nero sono incappato in un articolo che forse può fare comodo anche a te, Levi.
In un punto si dice chiaramente che..... "bla bla bla Does not happen when the black level control is set to high. ABL
becomes dramatically less aggressive.
If this control is set to low any calibration will be incorrect and your set will not be performing anywhere near its capability. "
Chiaramente gli altri settaggi andrebbero impostati di conseguenza.
La parte relativa alla gestione dei neri:
Picture fidelity is all in the BLACK LEVEL CONTROL SETTING in the options menu
I have not seen anyone anywhere get this next thing right or realise this setting that is needed to get LG oleds’ set up correctly. That includes reviewers, and it’s this setting that is causing the most of the calibration issues. How do I know this, it’s their brightness control setting.
In the screen option menu there’s a setting called black level, you have the option to set it to low or high. Now LG have made a mess of this, it’s got lost in translation very much the same way as some of the labels on Pioneers’ controls were wrong.
This setting is the HDMI black level response, on a Panasonic it reads full or Normal. Set to the default setting of low it is 0-255, in high it is 16-235 which is what we require for video. Set to low the brightness control ends up with a setting range of around 56-59. Set correctly to the high setting, the brightness control should have a setting range of around 37-41, and voila, black crush is eliminated, and the bright levels, such as calibration test patterns fatigue dramatically slower, giving plenty of time to calibrate. The menus still cause an issue with readings as menus’ place a large opaque slide over the image reducing image brightness in a negative way that produces incorrect readings. This does not happen on the 960. Unfortunately because LG have messed this up, the Freeview tuner and the apps have this setting fixed to low, and is greyed on in the menus’ when viewing these inputs. This is less of an issue on the 960 because of its higher ABL threshold but it is not right and it is needed to be selectable across every input and setting preset. LG need to fix this.
So with the 930 selecting the correct setting corrects colour integrity producing far more depth and vibrancy to the image and black crush and white clipping disappears. Now using the black level properly has a very clever feature. Selecting the low setting for gaming consoles’ reduces intensity around huds and other static graphics. You can see this in action if you have it set to low for normal TV. If you watch some football or rugby he score and channel dog will fade and it looks like there is a halo around it. Does not happen when the black level control is set to high. ABL becomes dramatically less aggressive.
If this control is set to low any calibration will be incorrect and your set will not be performing anywhere near its capability. There are other settings as well that don’t respond as indicated and this is not the place to discuss how those should be incorporated into the calibration process.
On a final intoductionary note, my 930 oled has 943 hours on it, these sets get better with time like a plasma does. The service I’m offering to my customers is to calibrate almost out of the box and returning to make any final adjustments after 3 months. The 27 930’s I’ve done have barely moved. The thing that improves is the dark level response and I tend to make minor adjustments at 40ire and below.
fonte:
http://www.displayandsoundcalibration.com/world-exclusive-lg-eg-960v-vs-lg-ec-930v-2/
