Pimax Crystal Light - Very Blury Right Eye

[Dangerzone]

Just wondering if others have received their Pimax Crystal Light yet, and if so, have you had any QC issues?

Mine just arrived today - finally going to be able to fly VR (or so I thought). After installing the software and donning the headset, I noticed that the right eye is completely out of focus. I've tried changing the PD all the way both ways, but to no avail.

On closer inspection, the right lens appears different to the left lens. The left lens appears flush, whereas the right lens mount appears to be extruding from the case to what I think is a plastic clip. 

I've emailed pimax support - will have to wait until they're timezone comes around, but just wondering if anyone else has had a similar issue, and what your result was.

After waiting 2 months to get this unit - it's hard to wonder how something as obvious as this could skip by their Quality Control. If it's the lens 'popping out' during shipping, I'm hoping that it can be pushed back into place - but I can't imagine what sort of a thump would be required to make it pop out. Maybe I'm just holding onto hope that it is something that can be fixed 'my end', but while waiting for their timezone to come around, thought I'd ask here to see if anyone else has experienced similar issues.

I don't see it being PID related. I can close my right eye and get a clear picture on my left, even moving my head/eye around in alignment. When I close my left and do the same to the right side - it's completely blurry - not just a little bit - extremely bad. Like looking through my granfathers coke-bottle glasses. I also tried using the IPD range all the way from one side to the other "just in case" with no avail. 

[Dangerzone]

Upon looking further, it seems as though the Pimax Crystal Light's lenses might be removable/replacable. (I jus tnoticed a screw holding each lens on). I was under the impression that the CL's lens wasn't supposed to be replacable - so this is interesting.

I also noticed that the lens was a little 'sloppy, and could be rotated around the screw. After gently rotating it slightly, it fit snug into position as though where it 'should be'. Donning on the unit and trying again has the right eye in focus.

What a relief! 2 months waiting, I wasn't looking forward to sending this back on day 1 on a RMA.  Hopefully this post may help others in future if they receive their pimax and have a similar issue. 

 

[Calvin.Pimax]

Hello,

Have you tried reseating the right lens?

Please follow the instructions demonstrated in the video.

Additionally, could you please share the ticket number with me? I'll take a look at it with the support team and urge them to provide further instructions.

3 minutes ago, Dangerzone said:

I was under the impression that the CL's lens wasn't supposed to be replacable

The lenses are replaceable, but not with other types such as wFoV or 42ppd.

 

[Dangerzone]

3 hours ago, Calvin.Pimax said:

Hello,

Have you tried reseating the right lens?

Please follow the instructions demonstrated in the video.

Additionally, could you please share the ticket number with me? I'll take a look at it with the support team and urge them to provide further instructions.

The lenses are replaceable, but not with other types such as wFoV or 42ppd.

 

Hi Calvin,

Thanks for your reply. I'm encouraged to hear that the lenses are indeed replicable. It's always good when manufacturers design their units to have replicable parts. Makes me think that they actually care about the longevity of their products. 

I have loosened the screw, and removed the right lens completely, and then re-applied as per the instructions in the video above. The focus is correct now, however the alignment seems way off - as though I'm in a fish bowl or a bubble.

I've tried changing the IPD all the way through the scale, and it seems to have little change on the effect. (I know my IPD is 62.5 as I had it checked by an optometrist, so I've put it back to there). 

I notice in order to read the "Out of bounds" message that shows up in the Pimax application, I had to take the Horizontal IPD Offset out to a full 10, but this distorted other images in the view. If I brought the horizontal IPD Offset back to around 3, it helped with some of the other distortion, but it was distorted in other areas. 

However regardless of where I  have it, I'm unable to get a unphased view of the "Interpupillary Distance" dialog that shows when adjusting the IPD dial on the headset - it's constantly out of alignment. 

Given the lens is now 'in focus' - just not aligned, I'm assuming that the lens is seated correctly now. Do you have any other suggestions please?

Thanks & Regards

DZ

[Dangerzone]

I ended up taking off the facae plate to get a better look, and noticed that even though the left lens looked OK, with the plate removed, i could see clearly that it too wasn't clipped on. It's as though the person putting the lenses on only placed them on top and screwed in the screw - they didn't clip either side in. 

I'm going to unscrew the left lens, and remove and then replace it. Interesting that the left lens was 'in focus', just not aligned even like this, while the right lens was fully out of focus. Fingers crossed this will be the answer.

[Calvin.Pimax]

 

20 hours ago, Dangerzone said:

I've tried changing the IPD all the way through the scale, and it seems to have little change on the effect. (I know my IPD is 62.5 as I had it checked by an optometrist, so I've put it back to there)

You might want to adjust the IPD by plus or minus 0.5 or 1. Even with the exact figure provided by an optometrist, it sometimes won't work perfectly with a VR headset.

20 hours ago, Dangerzone said:

it's constantly out of alignment.

I assume you’ve encountered cross-eyed vision, which might also be due to being too close to the lenses. Try pulling the headset away from your face slightly and see if it improves.

 

8 hours ago, Dangerzone said:

I'm going to unscrew the left lens, and remove and then replace it. Interesting that the left lens was 'in focus', just not aligned even like this, while the right lens was fully out of focus. Fingers crossed this will be the answer.

Try restoring the IPD offset to default first. Then, adjust the IPD until the cross-eyed effect is resolved before configuring the offset value.

 

Also, are you on Discord? If so, please shoot me a message at kehweng.null

Edited July 23, 2024 by Calvin.Pimax
attachments

[Dangerzone]

20 hours ago, Calvin.Pimax said:

 

You might want to adjust the IPD by plus or minus 0.5 or 1. Even with the exact figure provided by an optometrist, it sometimes won't work perfectly with a VR headset.

I assume you’ve encountered cross-eyed vision, which might also be due to being too close to the lenses. Try pulling the headset away from your face slightly and see if it improves.

 

Try restoring the IPD offset to default first. Then, adjust the IPD until the cross-eyed effect is resolved before configuring the offset value.

 

Also, are you on Discord? If so, please shoot me a message at kehweng.null

 

Hi Calvin,

Thanks for replying. 

I have tried the IPD through the whole range. The problem was primarily due to the lenses not being mounted. They were just sitting ontop of the lens mount (not clipped in), and only held in by the screw. The right side was also rotated, which is why it was so blurry I think.

Reseating the lens has definitely helped, and I'm able to see a lot clearer now, however there seems to be some warping within the lens. I notice when I focus on an object in the distance, and then move my head slightly while focusing on the same object, that the image is distored slightly. (Like looking through glass that has some distortion on it). This is worse in the left lens. I've also noticed dust on the mirror behind the left lens too. I'm assuming that these are assembled in a clean room, but given the lens was not actually clipped in, dust has probably gotten on the lens during transport. 

Thanks for offering to help on discord too. I've created a support ticket now on the pimax website regarding the dust, and the lenses to see what can be done, so I'll see how things go there (and will report back), although to be quite frank - you are much quicker at responding than the official support channel is.

Cheers

DZ

[Calvin.Pimax]

Hi DZ,

Thanks for your patience! If you haven't heard back from our support team yet, please share your ticket number with me. I'll do my best to review it and provide suggestions to the team to ensure you get the assistance you need.

Lol, I'm keeping an eye on several communities and servers. Unless there's an issue with notifications, I usually respond to users within 12 hours.

Have a great day! 

 

[Dangerzone]

On 7/24/2024 at 6:12 PM, Calvin.Pimax said:

Hi DZ,

Thanks for your patience! If you haven't heard back from our support team yet, please share your ticket number with me. I'll do my best to review it and provide suggestions to the team to ensure you get the assistance you need.

Lol, I'm keeping an eye on several communities and servers. Unless there's an issue with notifications, I usually respond to users within 12 hours.

Have a great day! 

 

Hi Calvin,

Thanks for your offer. Pimax support have gotten back to me regarding the lens distortion yesterday, and are going to send out another set of lenses to replace with to resolve that issue. They haven't gotten back to me regarding on how to clean the dust out that's sitting on the mirror though. 

I'll let you know if I run into any complications with the tickets, but at present, even though it may take 2 days to get a response (I expect that's normal with the elevated workload that Pimax have with the unexpected demand on these headsets  ) the responses seem to be coming back. 

Cheers

DZ

[Dangerzone]

Just got an update on my ticket. They've just recommended that I use a microfibre cloth to wipe the dust off the mirror.

[Calvin.Pimax]

You may want to remove the lenses and clean the inside with a microfiber cloth. Do not spray any liquid on the cloth.

 

[п-к В НАТУРЕ]

Hello everybody. I received my Pimax Crystal Light yesterday and when i start using it after quest 3 - i was in total shock because of fisheye distortion wrap effect and micro sweatspot which not allow to align HMD even on couple millimeters. I felt myself like i wear waterpool goggles which got some water inside.  

@Dangerzone was absolutely right about fish bowl or bubble, and here is the guy described also very well same defect : He said it's like you looking thru the bottom of bottle.   If you are moving your head around - the effect similiar like you have 3 monitors with interpolation film between them. Environments is not uniform. Moreover - the default envoronment with Sun and mountains always has flashing bug.   Yes i tried to reinstall lenses - nothing changed. 

 

Edited August 14, 2024 by п-к В НАТУРЕ

[п-к В НАТУРЕ]

Calvin please reply in discord - my name Antony(digits)

[Dangerzone]

2 hours ago, п-к В НАТУРЕ said:

Hello everybody. I received my Pimax Crystal Light yesterday and when i start using it after quest 3 - i was in total shock because of fisheye distortion wrap effect and micro sweatspot which not allow to align HMD even on couple millimeters. I felt myself like i wear waterpool goggles which got some water inside.  

@Dangerzone was absolutely right about fish bowl or bubble, and here is the guy described also very well same defect : He said it's like you looking thru the bottom of bottle.   If you are moving your head around - the effect similiar like you have 3 monitors with interpolation film between them. Environments is not uniform. Moreover - the default envoronment with Sun and mountains always has flashing bug.   Yes i tried to reinstall lenses - nothing changed. 

 

 

Unfortunately, I don't believe that the post above is relevant to to the Crystal Light. The only reference of this I can find is at https://community.openmr.com/t/crystal-shipping-update/40766 which appears to be from last year (for the Pimax Crystal, not the Crystal Light I'm guessing)?

I have replacement lenses being sent to me at the moment. I'll have to weigh them both when I swap them over just to see if they are indeed the same lens, or something different, but I suspect that it'll be the same weight. Hopefully just a different batch without the 'bottle' sensation.

[п-к В НАТУРЕ]

15 minutes ago, Dangerzone said:

Unfortunately, I don't believe that the post above is relevant to to the Crystal Light. The only reference of this I can find is at https://community.openmr.com/t/crystal-shipping-update/40766 which appears to be from last year (for the Pimax Crystal, not the Crystal Light I'm guessing)?

I have replacement lenses being sent to me at the moment. I'll have to weigh them both when I swap them over just to see if they are indeed the same lens, or something different, but I suspect that it'll be the same weight. Hopefully just a different batch without the 'bottle' sensation.

Well who will stop them to do the same with Light bro  This is China.

I heard that someone already received lense replacement and it's doesnt solve anything.

My opinion - there is a construction lack, especially if you received them from first batch like me. 

However - some reviews "thru the lense" doesnt confirm this.  Other guy from CES also mentoined bad sweet spot and blurriness on Crystal from beginning.  

But besides the blur and bottleview - sweet spot issues are unacceptable compared with cheaper HMDs (17:02 video):

 

[Dangerzone]

9 minutes ago, п-к В НАТУРЕ said:

I heard that someone already received lense replacement and it's doesnt solve anything.

That's disappointing to hear. I really hope that won't be the same case. When I get the lens replacements, I'll weigh them before putting them in, and will weigh my other lenses when I take them out to see if either are plastic or glass. (Even if they're the same weight, it would seem plausible if they're around 24gms, then we know we have the plastic ones, or if they're around 52 we have the glass ones). 

What I don't get is how. Before we got the CL - we had numerous reviewers gasping at how clear the image was with wow factors. Either there's a bad batch being made, or initial content creators are just paid actors, or Pimax sent a different build with different lenses to them than they have us. I really hope it's just a bad batch, because if it's either of the other two, it would be pretty deceptive and disappointing - and none of that would be confidence building for those who are hanging out for the Crystal Super. 

[Calvin.Pimax]

@п-к В НАТУРЕ 

Just to clarify, poly lenses are no longer being manufactured. All Crystal series headsets now come standard with glass lenses.

If you're experiencing fisheye distortion or warping, I doubt it's related to the lenses. Please file a support and request a replacement. 

[Dangerzone]

7 minutes ago, Calvin.Pimax said:

@п-к В НАТУРЕ 

Just to clarify, poly lenses are no longer being manufactured. All Crystal series headsets now come standard with glass lenses.

If you're experiencing fisheye distortion or warping, I doubt it's related to the lenses. Please file a support and request a replacement. 

Hi Calvin,

Thanks for the clarification on the poly vs glass lens situation.

Just to confirm, you doubt it's related to the lenses (I've emphasized your post above)? I've got this issue, filed a support ticket and they thought it was related to the lenses, so they've shipped a new set of lenses (currently in the mail) to resolve the issue. Just wanting to confirm if that's a typo - or if you think it's something more serious such as the headset itself?

Edited August 15, 2024 by Dangerzone

[п-к В НАТУРЕ]

Hi Calvin,
Thanks for the clarification on the poly vs glass lens situation.
Just to confirm, you doubt it's related to the lenses (I've emphasized your post above)? I've got this issue, filed a support ticket and they thought it was related to the lenses, so they've shipped a new set of lenses (currently in the mail) to resolve the issue. Just wanting to confirm if that's a typo - or if you think it's something more serious such as the headset itself?

We will control your results attentively @Dangerzone , i think Pimax understand what we are talking about, and since device cost 7xx usd - here is cannot be any jokes like this.

My doubts remains only with one question - The bottle distortions and small sweet spot are 2 independent issues. And i believe sweetspot size is not about lense quality issues - its about lense physical parameters itself

[Calvin.Pimax]

3 hours ago, Dangerzone said:

or if you think it's something more serious such as the headset itself?

Nope. So far, I've been testing the headsets, and when encountering a similar issue, switching the lenses resolved it. It doesn't seem to be related to the headset or other components.

[п-к В НАТУРЕ]

Nope. So far, I've been testing the headsets, and when encountering a similar issue, switching the lenses resolved it. It doesn't seem to be related to the headset or other components.

Calvin can you please also comment about low resolution of passthru cameras and why everything looks smaller than in real life? why i see the bug with flashing mountains in standard virtual environment ? I think its a not about device for 7xx usd

[Calvin.Pimax]

It's because the passthrough is enabled through the tracking camera.

If you're seeing flashing mountains, it could be due to an incorrect height setting or a loose DP connection.

[п-к В НАТУРЕ]

It's because the passthrough is enabled through the tracking camera.
If you're seeing flashing mountains, it could be due to an incorrect height setting or a loose DP connection.

Brother i know how passthru works, i asked why you are using so low quality cameras which distort FOV of the real world so much?

About flashing mountains - okay, maybe wrong height but how the enduser should understand this first time wearing your HMD out of box. No messages or something about this. It looks more like bug rather than wrong user experience

[Calvin.Pimax]

19 minutes ago, п-к В НАТУРЕ said:

i asked why you are using so low quality cameras which distort FOV of the real world so much?

As mentioned, this is a tracking camera, primarily used to track the surroundings and deliver data to the headset for processing.

However, we're also working on the MR faceplate, which you can expect to function similarly to the AVP or Quest 3.

[Dangerzone]

Replacement lens arrived, and initial tests show it’s made a huge difference for me. I’d say the left lens is 98% better now. I can still notice a very small distortion, but it’s small and I have to deliberately look for it now. It’s not “in your face” (excuse the pun).  I’d say I had a defective lens with my original unit. 

I also weighed both the old and new lenses and can confirm both are close to 52g, not 24g so both the old and new are both glass.

Hope this is encouraging news to others. Honestly, it’s been a rough first introduction to Pimax, but they have proved themselves to me with the after sales support in getting this resolved, which at least to me speaks volumes.

I do think their QC needs improving before they ship the premium crystal super with the premium price tag. For both lenses to not even be mounted correctly, and for the left to be this distorted without being picked up makes me think this never actually got checked at all. 

I’ll be interested to hear others experiences, and hope others have good success too. 

Edited August 16, 2024 by Dangerzone