Can i use it with IPD 73

[headshot]

Can i use the headset with an IPD of 73

[Colonel Ragman]

So officially hardware-wise, the index goes up to 70. I've read about a few people in reddit who didn't have any problems with a slightly higher ipd, though. If everything else fails, it is possible to mod some .ini file for the index/steamvr to adjust the ipd software-wise that is floating around reddit which reportedly works well.

Sorry I don't have the link at hand,currently, as I am on mobile, but it was in the r/valveindex subreddit 2 days ago.

[[Ø]AtomicWalrus]

The software IPD setting will not help much with being out of the physical range of the lenses, as it only corrects for scale (SteamVR does not have any kind of distortion correction for software IPD, and it can't help with the blur due to lens alignment error). It's better than nothing, but scale isn't the biggest issue in my experience.

At an IPD of just over 73mm, I found the 70mm setting to be somewhat problematic. The error was enough to produce outer edge blur and some warping/distortion (which, again, the software IPD offset cannot correct). You also lose the FOV benefits of the canting. It wasn't necessarily terrible, but it bothered me compared to the correct setting on the Vive.

I resolved this by using a spacer between the optical assemblies to (gently) slide them a bit farther apart than the adjustment mechanism can. They slide loosely, so there's no harm in damage if you don't apply excessive force, and I was able to get somewhere around 1.5-2mm of extra separation. This seems to be close enough, as I no longer experience the issues I did at the 70mm adjustment limit.

If you do this it's important that the separator be placed between the *bases* of the optical assemblies, not between the "tube" portion that is closer to your face. If you place them farther up on the tube, it will cause the assemblies to tilt outwards, causing a canting error that will result in stereoscopic issues. Separating from the bases causes them to slide without tilting.

These bases are rectangular (they house the panels), and can only be accessed by lifting (gently) the rubber dust cover from the nose area. Bring the lenses all the way in (towards where your face would be) and remove the gasket for access. Don't lift the rubber cover too aggressively or try to completely remove it, as it's glued onto the lenses and probably the upper portion of the tubes.

I'm including a photo of mine (https://imgur.com/a/jDHk3wI). I ended up using a carefully measured and cut piece of thick matte board, but in retrospect I would recommend something thicker and maybe more foam-like, as this was hard to place properly (in fact I got it in perfectly only by accident when my hand slipped).

I realize this is probably too much info, and not something most people want to do with new hardware, but I like to describe it to help out my fellow giant head people as HMD manufacturers seem to be leaving us behind.

[headshot]

thx for your answer. But the i will wait for the next one who have an IPD Adjustment to 73-74. Then i ceep my vive pro.