Tbh the lack of clarity on this from pimax is very telling, countless old and new users are reporting the same issue and I’m pretty sure if and when reviewers start getting review units this will generate a lot of negative reviews for sure. Its crazy that @SweViver has put so much effort into the PE software to make sure all the steam settings are rectified to ensure a clear image but there is still no instruction, guidance or tool to set the IPD / lense distance to ensure a clear image. It makes all the other efforts pointless tbh
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To a certain extent the offset works, I do use it, but according to my own experience above 1.5 to 2.0 mm it leads to eyestrain.
I have a 63-64 ipd and use a +1.5 offset and reach 64 to 64.5 ipd in total.
Right scale and clear 3d image although only one of my eye can reach the clear circle at a time.
If I put the lenses as close as each other as possible, I have to use a +4.5 ipd offset to reach m ipd and it’s hard for the eyes.
What doesn’t make sense? This shows the rendered global ipd, taking in account both the wheel use and the software ipd offset.
This makes sense for the reason risaa2000 and I stated. Plus it enhances the 3d clear zone (by clear zone I mean one eye at least on the clear center).
With such a design, if you put the center according to your eye you only see a very clear but tinny zone on the middle of your view but look through a fuzzy par of the lenses With both of your eyes as soon as you look at somewhere else that the very center.
I give you this one. Manufacturing precision issue probably.
8kx definitely must have an issue that the 5k+ doesn’t, I don’t know, I only have the 5k+.
Is your far ipd 67.5?
What I’m saying is, if as you state it isn’t IPD it’s lense distance then why does it say IPD? Doing so is going to make users match it to their ipd.
I’ve just given up on the X and had a session in the K and its better in every way except SDE. I have a clear image in both eyes, the blur is at the extreme edge of each eye and I have to look extreme left or right to notice it which is great. I set the ipd to my far ipd and no eye strain and 3d depth and presence is on point.
@anon57422158 @PimaxQuorra there is a definite issue with the X id like to say its only the 1 I have but there are far too many people stating the same problems. Can you please look into this. I’m pretty sure you won’t but at least I’ve made you aware.
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Oh ok. I may have made myself not clear.
I mean lens center to lens center distance is not equal to ipd. It is supposed to be superior to ipd.
Which risa2000 illustrations shows.
Understood. If my eyes where touch the lenses then it would be the same but as there is a distance between them it needs to be bigger
I don’t understand how one can arrive at this conclusion. If you adjust the headset so that it claims to match your IPD, you end end with the centers of the respective sweetspots at divergent angles. Which maybe is fine, as long as the view straight ahead when looking at infinity is still clear enough. When looking at an object close to your face, there’s a risk both eyes will have a blurry vision. That’s bad, but maybe we have to live with it. All lenses that have clear zones that do not fully extend inwards are going to suffer from this.
In none of these situations should one eye see clearer than the other. The one case when one eye looks to the sween spot and the other does not is when looking to the sides, and in this case 3D vision isn’t available anyway. Neither in reality nor in the headset.
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Beside the point you need two eyes to use stereo 3d, by having one eye out of focus, you will not benefit from the 3d as much. which is why you have to use the software IPD, thats not the correct way to do things.
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Yeah I think this is what people should do if they have this problem. Use the thin face foam. Bigger sweetspot means you might be able to alleviate your issue.
after reading the very clear explanation from risa2000 I posted above I can not understand how one can arrive to a different conclusion.
this is clear geometry.
Not so much to the side, at least not to the point there is no 3D vision anymore.
by putting the IPD to at least my real far IPD, I manage to have an overall very clear image.
but my brain has worked his way to this situation, he kinda learnt to form a clear image from an overall uneven situation, where one eye sees clearly and the other doesn’t, but don’t forget this :
-IRL we only see clearly few degrees around a point
-we move our eyes very often and very quickly when looking at an object and that gives us the illusion that we see the whole object clearly at once.
-knowing that, having only one eye on the clear zone at a time is not a problem since it’s not always the same eye.
-with canted panels, it will never work the same way as parallel panels when it comes to fresnel lenses.
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It does not, maybe your 5k+ is faulty? My 5k+ I got sharp focus on both eyes without problem. Not so much on 8kX. And the difference is so big that your brain can’t compensate. That is how I found out after all, it always felt strange as if one lens was fogged or something.
The only “solution” on 8kX was to decrease physical IPD and increase SW IPD and even then moving HMD slightly to the side. None of this was necessary on my 5k+.
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what does confirms that the IPD and the center to center distance are not supposed to be the same thing is the fact that the minimum center to center distance is about 65mm, while the minimum IPD, with zero offset is 60.
So if you have a 65mm IPD IRL and set this number on pimax, you end with a 70mm center to center distance, on every 5k+; right? and if your IPD is 60, you set the lenses as close to eachother as possible and center to center distance will be 65.
this confirms that if you set your IPD correctly, which means Pimax IPD number = your real IPD, the lenses centers will be 5mm further away from your eyes (2.5mm per eye) on the external side.
people consider this as a defect, while I think this is how this headset is supposed to work.
what confirms this is the fact that with correct IPD, I do have the right 3D scale and virtual world scale.
If I try to ignore my real IPD and set the lenses closer than they should be to have a clear image with both eyes at the same time, then the 3D depth is contracted/ reduced, the world scale is wrong.
So, both the IPD/scale matching and the fact that at 60 IPD, the center to center distance is 65 confirm that this is how it is supposed to work.
besides this makes sense if you closely look to the risa2000 illustrations, and explanations about this subject.
now, it looks like the difference is even higher on 8kX; and maybe people who have an IPD >65 who managed to mess with the IPD number of their 5k+ so that their eyes are both on the clear center can’t replicate this on the 8kX and conclude it is faulty.
But for me, they were not using their 5k+ the correct way in the first place.
but I’m not saying this is ideal in any way.
what would be ideal is to have non-fresnel lenses, so that the clear zone is the entire lens.
But I did not comment on this, this is irrelevant for topic discussed. I comment on the fact that both eyes are supposed to be on [equally] sharp focus, and 5k+ does work this way. 8kX has problem with this for some people.
Your conclusion that one eye should be in focus and other should not (let brain compensate) is wrong and as far as I understand @risa2000 findings it is not his conclusion either. There the only debate is whether both eyes should be in perfect focus or both eyes should be slightly out of focus (or sharp focus being slightly off center). But not that one eye should be in focus and other eye not.
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you mean on the 8kx it is always the same eye that is on the sweet spot and always the same other eye that is not?
Not necessarily same eye. If left eye is in focus and right eye is not (my case with proper IPD) then decreasing IPD I can get right eye to focus (but left eye gets out of focus + other factors introduced by wrongly set IPD). Now I am talking when my HMD is centered (nose in the center of the nose gap).
To have both eyes on equal focus I need to move HMD slightly to the side, eg my nose is no longer in the center of the nose gap. My conclusion is that my 8kX unit is slightly misaligned (optically).
oh, in this case, I agree, this must be a misaligned lens.
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