Here you go, a photo of the pimax 4k without lens:
I can see the line that I marked in red through the lens, if I press my eyes real close to the lens. Quite impressive btw, I never figured the Pimax 4k would use that much of the panel. What’s that, about 95%? Of course a little bit should be extracted because of the plastic that seperates left from right, it’s a few mm. But it seems safe to say that the pimax 4k uses over 90% horizontally of the panel.
Did you also try what I just did? Remove the lens, see how much the panel can display without the lens, then put the lens back in, press your eyes real close to the lens and see what you can see then (align the left or right of course, I aligned the right here, that yellow block on the right and then tried to look with my eye as much to the left as possible).
BTW the result I’ve got is actually with the foam removed, since I wanted to press my eye as close to the lens as was possible. Realistically the FoV will of course be a bit less since your eyes won’t be as close to the lens.
Yes I do. I know the screen is divided into 2 squares & then if mem serves the screen is shrouded as 2 circles.
My lenses are easy to remove but would still need to do a further dissassembly to remove shutter glass.
With @Sjef mod i believe he has the shudder glass removed.
God job @Sjef.
Yes, I tested it on the M1 with a Pimax 4K lens on the left side and compared to an M1 lens on the right eye. And also with two Pimax 4K lenses one in each eye and comparing with a Pimax 4K headset with the same image (a game and a movie).
I can’t explain anything because I’m under NDA. From here you have to draw your own conclusions, but I’ll just say…
“I’ve seen things you people wouldn’t believe. Attack ships on fire off
the shoulder of Orion. I watched C-beams glitter in the dark near the
Tannhäuser Gate. All those moments will be lost in time, like tears in
rain. Time to die.”
Cheers,
Neo
LOL I believe you man. But even some testers (I know of 2 actually) claim that you’re wrong. I haven’t seen any of their proof though. But it will surely get interesting in 2 weeks 
Either way, we know for sure there’s something seriously wrong with the Pimax 8k, otherwise people wouldn’t be so indecisive between the 5k and 8k. I just tried my Pimax 4k again, I hadn’t used it ever since I got the Vive pro and man it’s really a big difference in terms of SDE, exactly such difference you’d expect between the 5k and the 8k.
The interesting things will start when we receive the Pimax 8K, because we will be able to check all this ourselves (just like you did now), try all the lenses we want and explain it in community, without NDA restrictions.
Anyway, you’re not under NDA. You can imagine a screen twice the horizontal size for each eye and calculate how far your clear vision would go and from where your blurred side vision would start. That would give you a good simulation of what the Pimax 8K will be like.
I recommend you do all this on a blank piece of paper and with the lens on top (you will need a separator, because holding it by hand is not stable), to calculate and draw the screen sizes and sharp and peripheral display areas. And then put an image on that paper, to understand it better.
If you try it and it’s okay with you, you could put it in the thread of:
http://community.openmr.ai/t/shanghai-surprise-neoskynet-directors-cuts/7699/36
Cheers,
Neo
With the headset dismantled you can aproximate screen usage based on panel size & size of circles on the screen or squares if I didn’t see screen correctly due to being off.
Yes, but not only that, but the difference between Pimax 4K and Pimax 8K in central image sharpness should be close to 50%, with no SDE or visible pixels. That is to say, a totally crisp and clear image like on a 4K/UHD TV or monitor. That for games gives incredible realism, but for movies it’s life itself.
I think Pimax 8K is like a Ferrari with bicycle wheels. It is very much wasted because of the current lenses.
There are backers who settle for a worse image, SDE and visible pixels, and try to forget about them. But if we can improve it, why not?
Cheers,
Neo
I can’t verify your tests of course but it does make a lot of sense what you’re saying. We also know that testers in Berlin said that the FoV for the pimax 5k and 8k were the same, so that implies that at least the difference in panel size between the 8k’s panel and the 5k’s panel, is ‘wasted’ on the 8k. Furthermore it would explain why all Spanish testers say that the Pimax 8k quality is not near the Pimax 4k quality. So your analysis at least makes a lot of sense. Yet other testers claim you’re wrong, so it will be very interesting in 2 weeks!
I think the main point of contention i have with neoskynet comments are probably a result of language issues. when they describe the 8K as ‘it should be 50 percent clearer than 4k’, i’m going to assume that what they mean is, they want it to be, it would be if it was maximised according to their desire for lower fov and higher ppd.
Where it sounds wrong is if ’ it should be’ is taken to imply that the expected / promised performance of the 8k was 50 percent sharper. And if that is their assertion and not a misunderstanding, then they are wrong beyond any doubt when we have staff comments from the time of kickstarter saying they would have ballpark same ppd. And its important because i feel it is unfair to say, withhold a green light or condemn product for not hitting a target that they never set.
[quote=“sjefdeklerk, post:811, topic:7756, full:true”]
Thinking of this, why not just kill the scaler in the 8k? Then again, they’d probably need custom hardware to map that green box to the panel?[/quote]
Because it increases the cost. You suggestion really is: Get rid of the 8K and only manufacture the 8KX. The main issue which increases the cost is: there would need to be a second video cable and doubled circuitry in the headset (minus the unneeded scaler chip). That’s because DisplayPort cannot handle 2 x 4K @ 90Hz signals.
I’d definitely be interested in this (upgrading to an 8KX) as long as the additional cost isn’t too high and if a single (1) FTX 2080Ti card could render a good “ultra quality” Elite Dangerous experience (not too much reprojections or stutters).
You’re missing my point. The idea is to only render & transport the part that’s visible by the lens. That way most likely no extra cable nor double circuitry is needed.
Mmm… I think I understand you. Thanks for the explanation.
It was a request, not a demand.
It happened after we took out the lenses and checked that the Pimax 8K could be better. And also because nobody from Pimax answered my questions in the private testers forum. We were really lonely and abandoned in there, with the exception of Xunshu, who was doing her best.
Possibly I could have asked for the additional lens solution in the public forum in another way. The timing was not good either because we were all very eager to receive our headset as soon as possible, because of so many months of delay.
It was like some kind of spark that set the powder magazine on fire.
Cheers,
Neo
I am interested in this image
If it use different used resolution.
I am suspect that the 5k+ and 8k use different lenses? Or they use the same lenses,but use different profile to adjust the distortion?
They both originally had 80% panel usage. With 5k+ has potenially 89% going by original update that pimax has 80% panel usage.
Very good work, @Sjef.
You are very close to the truth. All you need to do is draw a third picture: the one on the Pimax 4K screen and draw the same green area.
You will be able to compare the three drawings and discover the whole truth.
I can’t because I’m under NDA and we’ve already been warned that we’re too close to the red line.
Note: Although everyone generally talks about 4K (4096x2160), the resolution is actually UHD (3840x2160). I therefore recommend that you do the calculations with UHD, to be more accurate.
Note: If you look at UHD, it is an exact multiple of FullHD. That is 1920x1080x4=3840x2160 and this goes very well for scaling the image. And 2560x1440x2.25=3840x2160.
I edit at the request of @destraudo to add and clarify the following:
About using 50% of the screen, it’s not exactly like that. Note that there are two screen areas, a clear center and a blurry peripheral. Now in your green box you’re just drawing the clear center area.
If you do the same drawing for the Pimax 4K you will notice that there is only a clear central area and no blurred peripheral area. With the Pimax 5K+ and 8K it is necessary to add an additional frame with the blurred peripheral area corresponding to the peripheral FOV. This is the added bonus of the new headsets.
You also have to take into account other factors such as different lens magnifications, software-selectable FOV, eye-lens alignment, IPD displacement, etc. into account. This is all public and I’m not explaining anything new.
Cheers,
Neo
I hope to god you didn’t actually sign a legally binding NDA because this is how an nda works.
tester is told a confidential number between 1 and 10
_random person guesses 3. _
tester …
and this is how you think an nda works.
you are told a confidential number between 1 and 10
_random person guesses 3. _
tester ‘oh oh getting warmer! getting warmer you almost have it. Now i cant tell you the actual number because of NDA but if you were to say, perform the minimal whole number addition…’
And i’m not shocked you were told you were too close to the red line before, i’m astounded you didn’t heed the warning. You have basically put yourself in a position where they could sue you for breach of NDA if they felt it was worth the hassle. Thank god they seem to be so chilled out about these things.
Like to help you understand this. Up to this point, public knowledge was that the 8k had 80 or higher percent screen utilisation. By telling sje that their post is close to the truth they just need to add an extra image, you are suggesting the 8k screen utilisation is 50 percent. Which if true, would be considered confidential information. And only for like 2 weeks. I just dont understand why you would take that kind of risk with yourself for the sake of 2 weeks.
The lawsuit alone would cripple a person, regardless who wins.
Also, that image Sjef drew was extremely negative, using that little of the panels in the 8K. And it now seems Sjef was basically right with that assumption based on the reply he got from Neo.
Which strengthens my fear in the topic I started for Pimax 4K owners. That the 8K is a major step back in SDE compared to the Pimax 4K.
and whether its accurate or not now we have 2 whole weeks of negative speculation until we get an actual answer.
@deletedpimaxrep1 Is it true that the 8K only uses 50 percent of the display panel ? Could we find this out now rather than wait 2 weeks through negative speculation.
