So I’ve been playing 2 hours with my 5k+. First impressions:
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Setup: tried running it with .76 of pitools, didn’t detect the HMD (like everybody it seems). Upgraded to .90 and once I started that it immediately flashed a new FW and the HMD was detected. Lighthouses weren’t, I had to remove that lighthouse folder in the config dir, then everything worked. So far so good.
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Visual quality/SDE. @mixedrealityTV said not to expect a big step up from the Vive Pro. I feel, so far, that it’s actually a slight step down. The SDE is ‘funny’, it’s not that it’s much bigger than the Vive Pro, it probably is about the same size. The layout is different though. But what actually disturbed me where the ‘spots’ that @sweviver talked about. It depends on the colour of the back ground. Sometimes you don’t even notice them and sometimes they really ruin the scene. Well, not ‘ruin’ in that it sucks. It’s not that bad. But ‘ruin’ in that you actually see it. When I play a game with my Vive Pro I pretty much never think of the SDE. So far, with the Pimax 5k, it was several times ‘in my face’. However, of course this is just my very initial impression and I might ‘forget’ about it after some more time.
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Distortion. And I’m not talking about the ‘distortion’ at the edges. I’m talking about geometry distortion. I don’t think I’ve seen ANYBODY talk about this so I was highly surprised. The first thing I thought when I entered the SteamVR room, was “damn, something is off” and then I saw that it’s simply the distortion profile: if you look at an object and then move your head left to right (keep looking at that object), the geometry changes. I found this effect VERY disturbing. You can see it very well when you look at a large vertical object like a tree, keep looking at it, move your head left to right and the tree top actually bends left to right.
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Render bug at the edges: you see objects popping in at the edges (large FoV), even in the SteamVR room. Quite disturbing, I’m sure this is fixable though.
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IPD button. I never really liked the Vive Pro’s IPD button, for it takes sometimes like 5 seconds before you see the IPD menu pop up after moving the button. However the Pimax ipd button is far worse. First of all I couldn’t even dial in my IPD, not sure but had to fiddle with the button quite a bit. And then it just ‘jumps’ every now and then, mostly when you put on the HMD.
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Comfort: quite bad, compared to the Vive Pro. It hurts my nose a bit and I still haven’t found a way to wear it comfortable. Also not sure what the best way is to adjust it, with the HMD on your face or not. Will mess around with it some more, maybe i can get it more comfortable
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Light bleed at nose: doesn’t happen with my Vive Pro, but quite a bit of light around my nose enters. But this can easily be solved with some fabric.
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Colours: not as bad as I had thought. Sure it’s no way as good as OLED but I found it very acceptable.
Ok, put the HMD at ‘large’ FoV. Then some test. First thing I ran was … a porn movie! Hey I’m a man Wanted to see how it looked and it left my quite unimpressed. One thing is that those studio’s put their name in the far left/right and now you suddenly see that. But not sure why I didn’t like it that much, the feeling of presence was less than with my Vive Pro. Maybe because of the geo distortion. First impression is that if porn vid’s are your thing, I think you’d like the Vive Pro better. Ok, then for a game. I tried Skyrim and ok, NOW it impressed me. The FoV is really nice, much more immersive. I was happy to see that the distortion around the edges, the ‘big ring of light’ was nowhere as horrible as I had imagined it. It’s like somebody said, you’re wearing diving goggles and water is leaking around the edges. But it’s not as bad as it sounds. At least not in my experience, I was positively surprised there. But sure, it’s there and it might be irritating for some.
In general I totally agree with what @Neoskynet said about the ‘fried egg’ lens design. Only the round part is clear, that whole ‘flat’ part of the lens is fuzzy.
Anyway these are just my very first impressions and I surely might change my opinion somewhat after some more gaming.
Biggest downside so far is, interestingly enough the thing that (I think) nobody even mentioned: the geo distortion profile (or did @OlivierJT talk about this? Going to re-read his review) . If pimax can fix this, then the HMD will become so much better. I think this currently really destroys the feeling of presence.
Anyway my very first impression is that it’s nowhere as good as @mixedrealityTV made it sound. But again, it’s my very first impression, after messing around with it for a couple of days I might change it of course. And I also think some of the downsides I mentioned above are fixable in software.