HDR mode
True HDR hardware in the sense of per pixel dimming also enables true HDR enjoyment. Contrast is inherent in an OLED and that is more than half the battle. As is typical for OLEDs, the maximum peak brightness will decrease sharply at an APL > 10 percent. Here, the mini-LED panels can shine more, but they have their disadvantages, e.g. in terms of latencies. We will look at the accuracy with which the Xeneon Flex can reproduce HDR content later on. Provided it is deemed relevant?
Grayscale Tracking (EOTF and Luminance)
Standard CCT (D65)
Pre-Set CCT (8500K)
In both cases, both EOTF and luminance tracking don’t really fit. Without going into the last detail, this means that there are deviations in the brightness at the beginning of the tracking (too bright) and during the “roll-off” it becomes too dark. Now that was a highly simplified summary. As a result, we will also see color accuracy and saturation suffer somewhat as we go along.
ColorChecker
Standard CCT (D65)
Pre-Set CCT (8500K)
Saturation
Standard CCT (D65)
Pre-Set CCT (8500K)
Measured by the price, the customer can expect a better result here, I have to state that quite clearly. If these results are also found with other colleagues (e.g. Prad), then there can be no question of an individual error. Of course, it could be measurement errors on my part, whereas I sent the results to Corsair in advance. They’re probably taking another look at gray scale tracking.
Note: There will not be a post-test with me. Because the monitor is unfortunately already gone again!
Brightness vs. Window Sizes
Depending on the white point, the Xeneon Flex achieves different peak brightnesses (APL = Average Picture Level). I was able to measure up to 930 nits (1-3 percent window size) with the 8500K white point. Not quite the specified 1,000 nits, but that can have various reasons. On the one hand, I don’t have any laboratory conditions and on the other hand, it could also be due to the measurement technology. The fact is that you wouldn’t really notice a difference between 930 and 1,030 nits anyway. Therefore, I say that the marketing foil for the end customer is fulfilled. If you are willing to accept the slight blue cast at 8500K.
Standard CCT (D65)
The values with the D65 are also really impressive. If the max. brightness is not that important, I recommend the default white point in the OSD.
Pre-Set CCT (8500K)
On the subject of HDR, I would like to add my personal opinion. Even if the EOTF tracking doesn’t quite fit and LG or Corsair have set the white point here to 8500K by default to create the stated 1000 nits peak brightness. A bit like cheating, but you deal with it transparently, so it’s ok for me. One thing has to be said quite clearly: This monitor will simply blow your mind if you use it for HDR gaming. Whether with up to 700 or up to 1,000 nits. In the end, this is again a matter of taste and owed to marketing. The gaming experience will not suffer from this. The incredible OLED contrast simply blows you away even in SDR.
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