witega wrote: ↑
11 Dec 2019, 13:04
ELK wrote: ↑
11 Dec 2019, 11:20
hmm this actually doesn't work on mine. When I turn PureXP+ on after selecting sRGB it goes back to native color temperature...
Yup that's why I would like Chief to confirm with ViewSonic if this is going to be in a future firmware update.
I just don't understand why that option can't be selected once you turn on PureXP+. Chief any ideas?
For the purposes of improving understanding:
You can get sRGB manually.
Automatic sRGB requires more work than you think:
....There is a limited amount of firmware memory
and limited budget
for user interface redesigns and branching conditions. The sRGB calibration was done for non-strobed, and it would likely require a completely new sRGB calibration for strobed (partially because a custom tuned overdrive is used for strobed, and that affects sRGB calibration). So the non-strobed presets are not selectable, since it may or may not be distorted by the strobe mode. If they enabled non-strobed sRGB calibration for PureXP+, reviewers may complain it is not correct sRGB calibration, especially if they verify with colorimeters that don't work well with strobe/CRT. This does not prevent you from manually creating a close-to-sRGB calibration during PureXP+
....The bottom line is that near sRGB gamut is achievable, just manually calibrated with a strobe-compatible colorimeter. So while automatic precalibrated sRGB isn't necessarily selected, you're already able to manually calibrate to the gamut you need during strobed, as the LCD dynamic range is not compressed in any way.
....Intentionally, many other strobed LCDs brighten blacks and darkens whites to reduce strobe crosstalk because of overdrive difficulties near fully saturated colors, full-blacks, and full-whites. As I've written over the years, overdrive logic requires voltage overshoot/undershoot headroom beyond destination color. That means at the end of the range, you need overdrive overshoot room below black and above white, just to simply accelerate a GtG (even without GtG-curve ripple)
....ViewSonic does not compress the dynamic range during strobed mode. Normally this creates more strobe crosstalk, but the sheer refresh-headroom and speed of panel, was sufficient overkill to produce crosstalk-free full-dynamic-range strobed operation on the panel, with properly tuned overdrive. That's why 240Hz 1ms IPS is a huge leap forward in (120Hz) strobe quality.
....Be noted, what I am writing here is stuff I've written in the past, is generic law-of-physics in dynamic range and applies to all strobed displays. People familiar with oscilloscopes and squarewave ripple will have a better understanding of what I mean by overdrive overshoot behavior.
That said, I'll ask if ViewSonic can re-enable the presets (sRGB) for strobed, and at least verify if it's sufficiently close (~1% deviation instead of >10% deviation) to be able to recycle the same calibration for strobed vs non-strobed.
To refresh memory (since other readers might not be reading earlier pages), I've quoted my earlier here:
Chief Blur Buster wrote: ↑
06 Dec 2019, 11:47
witega wrote: ↑
06 Dec 2019, 00:40
Hey Chief, when I have PureXP turned on, it doesn't give me the option to select "sRGB" in the color temperature. Is something wrong? Trying to get sRGB strobed.
I will contact ViewSonic and ask. Currently, it is a pre-set calibrated for non-strobed mode and you can still recalibrate manually to get the same effect.
Meanwhile, does your PureXP menu only have the ON/OFF or the 4 levels OFF/Ultra/Extreme/Normal/Light settings? (That is in the new firmware download coming early 2020, installable by monitor USB port).