Maybe fort people who don’t have an 8KX with Mura.
I didn’t need to know this to notice it. It’s that dominant.
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Yes, I get that. I think we are going to have to wait for subjective evaluations of multiple headsets by some people before we can be sure this is variation between the displays, or another problem.
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But how do you distinguish between mura and ED rendering uneven background in this scenario?
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Come vote on your personal experience here
https://community.openmr.ai/t/mura-problem-poll/32258?u=pimel
Mura ist fix/stationary in sight, rendered pictures moves.
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KEEP NOT READING THE FOLLOWING IF MAYBE YOU DO NOT WANT TO SEE MURA IN VR HEADSETS FOR THE REST OF YOUR LIFE 
The ED background moves across the screens, with each star or star dust particle remaining at a fixed location in space essentially infinitely far away. The mura stays in the same place on the screen, appearing to be a layer of dirt moving across this background, as the head is turned.
It can take a bit of practice to see, and may be hard to ignore afterwards, which is why it may be better not to look for it.
EDIT: @Lucivr understands .
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I see mura as well and didn’t look for it. Only after searching the forum i knew it was a real defect. Very distracting as i’m apparently very sensitive in that regard, i also clearly see the SDE of the 8KX 
Hurts to say, but the Index (or G2) gets more attractive with every additional problem here…hinges, missing 2nd foam, comfort, SMAS sound, IPD focus, lenses, sweet spot, software, cracks on old 5K+, faulty cables, now mura…
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Well I had no issues aside from that one. I hope the majority of users had also been spared. Otherwise the forums would be full of that I’d guess. We’re half a dozen unlucky birds so far
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I want a device without the feeling of constantly having to clean the lenses, which in turn doesn’t help ;D
actually I guess there is some way to do it for manufacturer but it’s a complex one & I afraid nobody will do it:
- provide mura filter tool that allows your randomly generate pattern & choose the one you like the more, probably allow to select screens (left/right) & screen region, so once some of the panel sections are ok you can fine tune it further.
- try to use some kind of camera that can shot white or other solid background & use software tool to interpolate the shot image against pixels map & finetune it.
What I afraif of is that they can kill backlight brightness & do screen dull, seems it’s the main problem why their screens often so dull like in XR
I don’t know whether I should be thankful for your how-to or not…
I just played ED and searched for it - as my Asp is painted white, the Mura wasn’t too difficult to detect in the main menu already, now that I know what to look for…
Fortunately, it is not too severe, second, I only notice it when focusing on purpose completely close range on the lenses/display - as long as I am more or less fully concentrated on the game and focusing anything in VR-3D “behind” the lenses/display, it is actually gone - as long as I don’t remember
If it stays like this, I think I can go well with it, as I could the last weeks, too, since I didn’t knew about it
Hopefully it won’t get worse over time - cause, then there certainly will be a point from which on it will become difficult to ignore…
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When is the il2 patch coming?
No response from Pimax yet to this thread
- Will not work, because the amount of entropy is simply too large.
- Would require some calibration image, extensive software, and would not work outside the center area since most users do not have good tools to take complete through-the-lense photos.
To be done right, this would pretty much need to be a factory calibration, saved to EEPROM on the headset (or something like that).
It is easier just to manufacture displays without this defect.
As Pimax manufacturers more 8kX units, I am sure they will push back on the manufacturer to tighten up quality control / tolerances on this.
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I just shortly want to highlight what I’ve written and linked to in the other thread:
https://support.elotouch.com/TechnicalSupport/mura/
And most important:
=> This problem is well known all over the display industry and not yet resolved. So, at least now and in short-term, it is not solved by only increasing quality control and tolerances, I fear.
The explanations above imply that conceptional and technological changes are needed in order to prevent mura perhaps, i.e. take care of temperatures and installation place for the displays etc. Whereas it is logical that these problems increase the more performant and smaller the devices get… I think future R&D will have to deal with that, and hopefully they will find solutions for it one day or the other.
As the 8K-X due to several reviews gets hotter than the 5K+ and the 8K(+) probably, too, this may already be some kind of indicator, why Mura now increases… 
But as mentioned: Still an industry-wide problem, and Pimax may resolve this, hopefully, but I think as long as the large cellphone manufacturers such as Samsung, Apple or Huawei with their much larger R&D budgets don’t have solutions for that, Pimax probably won’t be faster 
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Mura is more of a problem for at least some Pimax headsets than others, if not variable between individual Pimax Vision 8kX headsets. Reasonable consistency has been achieved for displays within the same order of magnitude resolution and contrast.
The appropriate thing for Pimax to do is to specify a tolerance for mura with their next order of LCD displays. Even if tightening tolerances is not sufficient (which I somewhat doubt), then manufacturers can just bin and resell the rejects to someone else.
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I generally agree with you 
But don’t forget: Pimax neither is Samsung nor Apple nor - in VR sector - FB-Oculus or HP - Pimax still is a start-up company.
Look at the - probably production - problems NVidia has with supplying the new 30x0’s cards: They have enough cash “in their back” not to worry too much about bad GPU’s batches (of course, they worry, but certainly not as much as they would if they were a start-up). And perhaps, they even have substitutes to use the rejected “bin” GPU’s for other purposes - the graphics card market is much much larger than the VR market so far.
If we were five or ten years later and VR would have been established and settled completely, and if Pimax would be as large as Vive, Oculus or HP are, things certainly would be easier. But Pimax is, what Pimax is : A small enthusiast, start-up company with less capabilities and possibilities than their competitors, especially because they are working on the high-end and enthusiast VR segment. How much do you want to bin before getting bankrupt…? To whom could they resell the faulty displays as there is no-one…?
Please don’t get me wrong:
Of course they cannot sell and send everything - there must be tolerance tables for what is acceptable and what is not
But if they would reject every single display with the slightest Mura, I fear, we won’t have any enthusiast HMD’s at all - neither from Pimax, nor from anybody else. As far as I know, even Index or Reverb G1 HMD’s sometimes have this problem, and they don’t have that FOV and resolution level Pimax has.
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I believe StarVR One does a combination of both as I recall @VR-TECH I believe ir someone else posted about mura that was resolved by missing StarVR one missing display calibration files in there portal software.
However agreed some level needs to be first done at the factory to establish a base profile?
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I’m on day two with my 8KX , I’m not happy with it. I fly IL2 and DCS, not much on games. Today I’m going to try some games and see if I can get it to look good. My HP pro outside of the FOV somkes this 8KX. Mura sucks!!!
‘Reject every single display with the slightest mura’? Perhaps not. Reject the bottom 20% with excessive mura? This would probably cost Pimax much less than that 20%, as most of those displays could be sold to other companies.
Binning of components at manufacturing did not start with chip design companies like NVIDIA and such. Even ball bearings were binned before manufacturing technology improved to the point it became unnecessary.
There is a good chance Pimax just needs to check some different boxes on the order sheet for their next batch of displays. The manufacturer can take it from there, reselling the 20% rejects.
Modern manufacturing has been around since the first milling machines … from around 1783 apparently… If you think about it modern semiconductor manufacturing is really just scaled up from early three axis milling machines…
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