Xiaomi MIJIA Laser Projector 4K version with 4K resolution launched. - Page 27 - AVS Forum | Home Theater Discussions And Reviews
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post #781 of 1550 Old 06-14-2019, 11:37 AM
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Given the (re)announcement of the Optoma P1 UST, now as Cinemax P1, I'm wondering if that's the one I should really wait for. Was supposed to be released Q2, but now this "summer", but even with the delay, seems it isn't far off. Given how well 3D works in UHD51A, I expect Optoma will do an equally good job with P1. And likely more refined, with fewer annoyances, than Xiaomi.

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post #782 of 1550 Old 06-14-2019, 11:46 AM
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Xiaomi MIJIA Laser Projector 4K version with 4K resolution launched.

To those with the projector screen (I have the xy screen), how did you guys setup the projector so that it projects to all area of the screen? I’ve been trying to move the PJ around and put padding underneath it but still can’t get it to use the entire screen without leaking outside on horizontally or vertically (like I can make it projects a rectangular image, but the top and bottom of the screen are not fully used .. maybe 3 inches top and 2 inches bottoms are not used ... do you guys use the keystone adjustment at all?

BTW I have a 110 in screen .. not sure if it makes any different ...

Also, I tried plugging in mine to the 110V plug directly here in Seattle and it’s working fine
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post #783 of 1550 Old 06-14-2019, 11:54 AM
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Originally Posted by oni222 View Post
I misread what Titi said so my bad on that. As for ISO/MKV playback is dependent on more factors than a traditional player. I am not a fan of the xbox one X (I have it too and it sucks in comparison to my samsung UHD player) but I would love to see what you find out as a comparison.
I have used a blueray player Sony UBP-X700
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post #784 of 1550 Old 06-14-2019, 01:52 PM
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To those with the projector screen (I have the xy screen), how did you guys setup the projector so that it projects to all area of the screen? I’ve been trying to move the PJ around and put padding underneath it but still can’t get it to use the entire screen without leaking outside on horizontally or vertically (like I can make it projects a rectangular image, but the top and bottom of the screen are not fully used .. maybe 3 inches top and 2 inches bottoms are not used ... do you guys use the keystone adjustment at all?

BTW I have a 110 in screen .. not sure if it makes any different ...

Also, I tried plugging in mine to the 110V plug directly here in Seattle and it’s working fine

keystoning should give you those 2-3 inches, that's one negative for USTs. without some sort of zoom you have to monkey around with placement before mounting the screen

Xiaomi Mija Mi Laser UST 1080P (International), Sharp 4k 65", LG 4k 43", Nvidia Shield
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post #785 of 1550 Old 06-14-2019, 02:14 PM
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keystoning should give you those 2-3 inches, that's one negative for USTs. without some sort of zoom you have to monkey around with placement before mounting the screen


The thing with key stone is that even with fine adjustment, it shrinks horizontally when I try to get those few vertical inches back ... and then everything needs adjustment again.

Also, I noticed a slight curvature at the bottom of the projected image ... is that sort of expected due to the image size (110)?
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post #786 of 1550 Old 06-14-2019, 05:17 PM
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To those with the projector screen (I have the xy screen), how did you guys setup the projector so that it projects to all area of the screen? I’ve been trying to move the PJ around and put padding underneath it but still can’t get it to use the entire screen without leaking outside on horizontally or vertically (like I can make it projects a rectangular image, but the top and bottom of the screen are not fully used .. maybe 3 inches top and 2 inches bottoms are not used ... do you guys use the keystone adjustment at all?

BTW I have a 110 in screen .. not sure if it makes any different ...

Also, I tried plugging in mine to the 110V plug directly here in Seattle and it’s working fine
How does the XY screen look?

How long did it take to arrive?

Is there much light in your room?
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post #787 of 1550 Old 06-14-2019, 06:26 PM
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Thought I'd post a part II to my initial review earlier. Just spent another 3 hours w/the Xiaomi, really critically evaluating PQ, picture options/controls and whether motion artifacts/jaggies are bothersome enough for me. Trying to finally decide whether to keep this PJ, with the flaws I & others have pointed out, or stick w/my Optoma UHD51A for a while (until a better UST PJ that's 4K+3D capable comes out).

Re-positioned/re-setup the Xiaomi PJ again, trying to line it up as best possible, even & all, with my screen. Because my screen has beveled edges/black borders (pic), no matter what, with the Xiaomi projecting up toward it, part of the bottom of the screen gets cut off (like so). You really need a screen w/a flat or flat-ish border with this PJ.

For testing, plugged in my Zidoo Z9S to HDMI1, and nVidia Shield TV to HDMI2 (pic1, pic2). Was hoping the picture mode settings could at least be uniquely saved for each input... and yes, thankfully so! For each input, to get around picture settings being the same w/this PJ, no matter 3D, 1080p, 4K SDR & HDR, you at least can have a secondary picture setting for input 2, and another for input 3. But, the pain is that when running source devices though an AVR, like most of us do, there's only one HDMI out to the Xiaomi. Unless, that is, you introduce a HDMI switcher in between, which may cause HDMI handshake issues as the Xiaomi is so picky/sensitive with HDMI cables & getting HDMI 2.0/full [email protected] to take.

Before I talk about picture settings & PQ, someone earlier asked about distance between screen & PJ. This is w/my 100" screen: pic1, pic2.

Oh, think I mentioned it before, but the Xiaomi is rather finnicky going into HDMI 2.0 mode. Even if it works once, and you come back another time/day, don't expect it to work, as you may need to unplug the HDMI cable & plug it back in, or turn off the source device & back on. This shows when I powered on for the day, and this after I unplugged/re-plugged the HDMI cable.

The best thing about the Xiaomi PJ (other than it being an UST) is its sharpness and uniformity (better than 90% or better over the full projected image). Both of these aspects are better than two 4K DLP's I've tried so far (BenQ HT2550 and my current Optoma UHD51A).

So, finally, picture settings & trying to get as accurate colors as possible. I'm eyeballing it as I don't have professional calibration gear. But, this is the toughest part w/the Xiaomi, trying to dial in what looks right as none of the presets really (or fully satisfactorily) do. And, as I mentioned, once you get colors right for 3D source, they just don't look right for SD/SDR, and yet not again for 4K HDR. And, with each input on this PJ, you're stuck with only a single set of image settings, which sucks. So, here's me trying to work picture w/3D (pics taken via iPhone with 3D glasses in between):
- Picture setting1 (in actual viewing, doesn't look as red)
- Picture setting2 (actual looks warmer, more orange/yellow)
- Picture setting3 (actual looks pretty good, but picture goes softer)
- User setting1 (@mlkconcept's settings, while look good in this iPhone pic, actually look a little drab/washed out, but definitely more accurate than all of the above)
- User setting2 (my 1st custom, trial & error, in actual viewing, looks right-ish)
- User setting3 (my 2nd custom attempt, in actual viewing, also looks right-ish)
- User setting4 (my 3nd custom attempt, in actual viewing, looks more right)
- User setting5 (my 4nd custom attempt, in actual viewing, also looks right)

Before I leave 3D, wanted to mention that I tried several full 3D, SBS and HOU titles, and all worked well, in rendering as proper 3D. The 3D effect is excellent across the board, depth, no crosstalk or ghosting, brightness. Initially had thought 3D was better than BenQ’s & Optoma’s, but it isn’t; rather it’s the Xiaomi’s sharpness that makes it seem so.

So, moving on to a different input (HDMI2), I get to apply this input's own/unique picture settings. Now I'm using nVidia Shield TV, and trying a demo 4K HDR clip. When I replicate/apply that last custom picture setting from 3D from input1, it looks like crap. See what I mean?! So, proving my point, the same picture settings will not work across SD/SDR, HD, 3D & 4K HDR. Now, the sample looks much better with both the standard preset & movie preset (and minor adjustments can make this better), which wasn't the same w/3D source.

And, when HDMI 2.0 mode locks in, you can see here that the Xiaomi PJ supports [email protected]/REC2020/10bit just fine (as indicated by my nVidia Shield).

Finally, I tested several FPS/motion test clips, and the Xiaomi doesn't fare too well. I'm seeing motion judder in 1080p or upscaled to 4K. It isn't as bad in 4K, but still noticeable. I then tried a couple of 1080p and 4K movies with camera pans, and the judder is noticeable. Not as severe like with test clips, but noticeable & bothersome nonetheless. Add the jaggies I also notice with 60fps content, both 1080p and 4K, and all these issues add up to pretty significant dings for home theater & movie enthusiasts.

So, where do I stand w/the Xiaomi PJ vs. Optoma UHD51A? After this second round of critical testing, I'm thinking of sticking w/my Optoma UHD51A. I really wanted to like (no, love) the Xiaomi UST, but it's hard to ignore all the flaws. Not one is a dealbreaker, but considering all of them, I'm afraid it is. In the end, if I compare these two PJ's based on PQ, not the coolness of the Xiaomi being a UST, the Optoma is just better all-around. Sure, the Xiaomi is sharper, brighter & punchier, but its picture is also blown-out, where you miss highlights & details. And color accuracy isn't that good, where Optoma easily bests it. Not to mention, the Optoma also does automatic 3D switching, proper 23.976/24 and no video artifacts, and cinema picture settings that look good no matter which source or type of content.

I'm going to play around some more w/the Xiaomi over the weekend before making a final call on it. But, I don't see most of its flaws as really addressable. Firmware updates may help, but as I rewatch Vincent's YouTube review of this PJ & read Secrets' review of the Vava (basically the same PJ), I get the sense we need to wait for these APLD UST's to mature some.

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post #788 of 1550 Old 06-15-2019, 12:03 PM
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Xiaomi always prefer forget country outside China or some rumors let us hope?

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post #789 of 1550 Old 06-15-2019, 03:32 PM
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Off to eBay my PJ has gone; now waiting for Optoma CinemaX P1.
this pj thing can drive a guy nuts... decided to jump into 4k after enjoying my benq 1080p ht1085st for years, purchased the dell s718ql 4k ust and returned it, purchased the benq lk953st 4k and returned it, just couldn't rationalize the 5-6 times the price vs my 1080p benq in terms of increased image quality and functionality.

now i'm waiting on the xiaomi mijia which should be here next week, at least it's "reasonably" priced compared to the other two pj i returned/mentioned, and if it doesn't work for my intended plans at least i can use at home for casual viewing, or sell it... i'm hoping my lumagen pro can help with some of the rough edges mentioned, but now i'm really concerned about the locked 60hz, what an odd thing.

maybe i'll just wait until samsung's 220" luxury wall to come down to the $5k range, yeah right, ha ha...
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post #790 of 1550 Old 06-15-2019, 04:04 PM
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If you care about color accuracy, and notice judders & jaggies, this PJ will probably irk you.

Again, hoping Optoma's UST will be good enough. I like what I see with
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post #791 of 1550 Old 06-15-2019, 04:32 PM
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yeah, all of these vids are exciting, as were the xiaomi mijia vids, until vincent pees in everyone's cereal!
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post #792 of 1550 Old 06-15-2019, 04:38 PM
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LOL, yes. So, waiting for reviews with the Optoma.
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post #793 of 1550 Old 06-15-2019, 04:41 PM
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LOL, yes. So, waiting for reviews with the Optoma.
if you still have your xiaomi set up, would you mind doing a quick vid of turning it on, something that shows the blank screen, then the splash screen, etc.? thanks!
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post #794 of 1550 Old 06-15-2019, 06:12 PM
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I already packed up my Xiaomi, but you're in luck, I had created a remote control power button press to home screen timing video (please ignore the background air conditioning & kitchen noises):

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post #795 of 1550 Old 06-15-2019, 06:34 PM
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I already packed up my Xiaomi, but you're in luck, I had created a remote control power button press to home screen timing video (please ignore the background air conditioning & kitchen noises)
wow, very helpful, thank you very much.... have a couple of questions: a) is the user able to change the splash screen and b) is there way to bypass the home menu when the pj boots, i.e. remain on the splash screen or boot to a blank screen? thanks again!
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post #796 of 1550 Old 06-15-2019, 08:11 PM
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No idea on both. As it's Android, it's probably possible to root the OS, or at least change the launcher/home. XDA forums would be the best bet for this.

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post #797 of 1550 Old 06-16-2019, 03:02 AM
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wow, very helpful, thank you very much.... have a couple of questions: a) is the user able to change the splash screen and b) is there way to bypass the home menu when the pj boots, i.e. remain on the splash screen or boot to a blank screen? thanks again!
You can start directly into selected hdmi port, so you not see the menu
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post #798 of 1550 Old 06-16-2019, 04:31 AM
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With your 3D source does it show it in a split screen ? Only way I can get it to work is by using the left to right option and it just doesn’t seem that clear if I’m honest.
I’m using the boblov glasses too
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post #799 of 1550 Old 06-16-2019, 04:32 AM
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No idea on both. As it's Android, it's probably possible to root the OS, or at least change the launcher/home. XDA forums would be the best bet for this.
Unfortunately, it's not that easy to root this bad boy. Requires breakout HDMI cable and pin access on the mainboard. It's not for the faint of heart though anyone who has built their own PC over the past ten or twenty years should be able to do it without too much trouble.

Info on the XDA thread which has the custom app.

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post #800 of 1550 Old 06-16-2019, 07:20 AM
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Thought I'd post a part II to my initial review earlier. Just spent another 3 hours w/the Xiaomi, really critically evaluating PQ, picture options/controls and whether motion artifacts/jaggies are bothersome enough for me. Trying to finally decide whether to keep this PJ, with the flaws I & others have pointed out, or stick w/my Optoma UHD51A for a while (until a better UST PJ that's 4K+3D capable comes out).



Re-positioned/re-setup the Xiaomi PJ again, trying to line it up as best possible, even & all, with my screen. Because my screen has beveled edges/black borders (pic), no matter what, with the Xiaomi projecting up toward it, part of the bottom of the screen gets cut off (like so). You really need a screen w/a flat or flat-ish border with this PJ.



For testing, plugged in my Zidoo Z9S to HDMI1, and nVidia Shield TV to HDMI2 (pic1, pic2). Was hoping the picture mode settings could at least be uniquely saved for each input... and yes, thankfully so! For each input, to get around picture settings being the same w/this PJ, no matter 3D, 1080p, 4K SDR & HDR, you at least can have a secondary picture setting for input 2, and another for input 3. But, the pain is that when running source devices though an AVR, like most of us do, there's only one HDMI out to the Xiaomi. Unless, that is, you introduce a HDMI switcher in between, which may cause HDMI handshake issues as the Xiaomi is so picky/sensitive with HDMI cables & getting HDMI 2.0/full [email protected] to take.



Before I talk about picture settings & PQ, someone earlier asked about distance between screen & PJ. This is w/my 100" screen: pic1, pic2.



Oh, think I mentioned it before, but the Xiaomi is rather finnicky going into HDMI 2.0 mode. Even if it works once, and you come back another time/day, don't expect it to work, as you may need to unplug the HDMI cable & plug it back in, or turn off the source device & back on. This shows when I powered on for the day, and this after I unplugged/re-plugged the HDMI cable.



The best thing about the Xiaomi PJ (other than it being an UST) is its sharpness and uniformity (better than 90% or better over the full projected image). Both of these aspects are better than two 4K DLP's I've tried so far (BenQ HT2550 and my current Optoma UHD51A).



So, finally, picture settings & trying to get as accurate colors as possible. I'm eyeballing it as I don't have professional calibration gear. But, this is the toughest part w/the Xiaomi, trying to dial in what looks right as none of the presets really (or fully satisfactorily) do. And, as I mentioned, once you get colors right for 3D source, they just don't look right for SD/SDR, and yet not again for 4K HDR. And, with each input on this PJ, you're stuck with only a single set of image settings, which sucks. So, here's me trying to work picture w/3D (pics taken via iPhone with 3D glasses in between):

- Picture setting1 (in actual viewing, doesn't look as red)

- Picture setting2 (actual looks warmer, more orange/yellow)

- Picture setting3 (actual looks pretty good, but picture goes softer)

- User setting1 (@mlkconcept's settings, while look good in this iPhone pic, actually look a little drab/washed out, but definitely more accurate than all of the above)

- User setting2 (my 1st custom, trial & error, in actual viewing, looks right-ish)

- User setting3 (my 2nd custom attempt, in actual viewing, also looks right-ish)

- User setting4 (my 3nd custom attempt, in actual viewing, looks more right)

- User setting5 (my 4nd custom attempt, in actual viewing, also looks right)



Before I leave 3D, wanted to mention that I tried several full 3D, SBS and HOU titles, and all worked well, in rendering as proper 3D. The 3D effect is excellent across the board, depth, no crosstalk or ghosting, brightness. Initially had thought 3D was better than BenQ’s & Optoma’s, but it isn’t; rather it’s the Xiaomi’s sharpness that makes it seem so.



So, moving on to a different input (HDMI2), I get to apply this input's own/unique picture settings. Now I'm using nVidia Shield TV, and trying a demo 4K HDR clip. When I replicate/apply that last custom picture setting from 3D from input1, it looks like crap. See what I mean?! So, proving my point, the same picture settings will not work across SD/SDR, HD, 3D & 4K HDR. Now, the sample looks much better with both the standard preset & movie preset (and minor adjustments can make this better), which wasn't the same w/3D source.



And, when HDMI 2.0 mode locks in, you can see here that the Xiaomi PJ supports [email protected]/REC2020/10bit just fine (as indicated by my nVidia Shield).



Finally, I tested several FPS/motion test clips, and the Xiaomi doesn't fare too well. I'm seeing motion judder in 1080p or upscaled to 4K. It isn't as bad in 4K, but still noticeable. I then tried a couple of 1080p and 4K movies with camera pans, and the judder is noticeable. Not as severe like with test clips, but noticeable & bothersome nonetheless. Add the jaggies I also notice with 60fps content, both 1080p and 4K, and all these issues add up to pretty significant dings for home theater & movie enthusiasts.



So, where do I stand w/the Xiaomi PJ vs. Optoma UHD51A? After this second round of critical testing, I'm thinking of sticking w/my Optoma UHD51A. I really wanted to like (no, love) the Xiaomi UST, but it's hard to ignore all the flaws. Not one is a dealbreaker, but considering all of them, I'm afraid it is. In the end, if I compare these two PJ's based on PQ, not the coolness of the Xiaomi being a UST, the Optoma is just better all-around. Sure, the Xiaomi is sharper, brighter & punchier, but its picture is also blown-out, where you miss highlights & details. And color accuracy isn't that good, where Optoma easily bests it. Not to mention, the Optoma also does automatic 3D switching, proper 23.976/24 and no video artifacts, and cinema picture settings that look good no matter which source or type of content.



I'm going to play around some more w/the Xiaomi over the weekend before making a final call on it. But, I don't see most of its flaws as really addressable. Firmware updates may help, but as I rewatch Vincent's YouTube review of this PJ & read Secrets' review of the Vava (basically the same PJ), I get the sense we need to wait for these APLD UST's to mature some.
Thank my friend for saving time and money, I am still wondering why so many users on this thread never talked about how bad this projector is but kept on talking about was PET screens.

Fingers crossed that Optoma CinemaX doesn't blow up my budget.



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post #801 of 1550 Old 06-16-2019, 07:36 AM
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The Xiaomi isn’t bad, but given how far PJ’s have matured at this price point over the last few years with PQ and video rendering accuracy, I think a HT enthusiast has to ignore one too many significant flaws collectively to live with it.

Right, fingers crossed on Optoma CinemaX P1. Believe price is supposed to be between $2.5-$3K.
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post #802 of 1550 Old 06-16-2019, 07:39 AM
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The Xiaomi isn’t bad, but given how far PJ’s have matured at this price point over the last few years with PQ and video rendering accuracy, I think a HT enthusiast has to ignore one too many significant flaws collectively to live with it.



Right, fingers crossed on Optoma CinemaX P1. Believe price is supposed to be between $2.5-$3K.
Well if auto 3D frame packing is activating thats a deal breaker for me.

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post #803 of 1550 Old 06-16-2019, 08:01 AM
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I could've lived w/the manual activating/deactivating annoyance, and 3D content is actually artifact-free (no judders), but getting colors right takes work. Then, only to throw those settings out the door for 2D 1080p & 4K HDR for that input.

Quote:
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With your 3D source does it show it in a split screen ? Only way I can get it to work is by using the left to right option and it just doesn’t seem that clear if I’m honest.
I’m using the boblov glasses too
Yes, split top/bottom screen. Combining only worked for me with 'Move up or down', or with 'Fit to frame', same proper 3D effect with both.

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Last edited by Brajesh; 06-16-2019 at 08:08 AM.
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post #804 of 1550 Old 06-16-2019, 08:20 AM
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On the Optoma - latest listings had it running at $6k initial price, as discussed in our relevant thread here. Let’s hope it’s just an initial price. Then again, I might be mixing things up with the LG UST.
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post #805 of 1550 Old 06-16-2019, 08:23 AM
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I could've lived w/the manual activating/deactivating annoyance, and 3D content is actually artifact-free (no judders), but getting colors right takes work. Then, only to throw those settings out the door for 2D 1080p & 4K HDR for that input.

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With your 3D source does it show it in a split screen ? Only way I can get it to work is by using the left to right option and it just doesn’t seem that clear if I’m honest.
I’m using the boblov glasses too
Yes, split top/bottom screen. Combining only worked for me with 'Move up or down', or with 'Fit to frame', same proper 3D effect with both.
Mine is split left and right on the content so the left to right 3D option seems to work better for me. I wanted to like it a lot better than I do but the picture just isn’t great if I’m honest. I’m not saying it’s totally the PJ as I guess it depends on the rip of the content
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post #806 of 1550 Old 06-16-2019, 08:40 AM
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On the Optoma - latest listings had it running at $6k initial price, as discussed in our relevant thread here. Let’s hope it’s just an initial price. Then again, I might be mixing things up with the LG UST.
Unless things have since since CES when it was introduced, Optoma rep says around $3,000; see the 2:20 mark in this video:

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post #807 of 1550 Old 06-16-2019, 09:07 AM
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Can anyone measure the color gamut if it exceed REC 709? I'm interested if it can at least meet 90% of DCI-P3. Also, does it come with dynamic contrast with light dimming features?
Vincent's review said 81.66%. I was considering this projector but i wonder if optoma p1 can really hit 90% for 1k more. I might just stick with traditional projectors...and 95 ms lag is really bad...

Last edited by IDAnonymous; 06-16-2019 at 09:11 AM.
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post #808 of 1550 Old 06-16-2019, 09:08 AM
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I’m not saying it’s totally the PJ as I guess it depends on the rip of the content
i think that's what i have to grasp if i ever expect to enjoy these 4k/hdr pixel shifting projectors, or at least the ones that are currently available... as i mentioned, i 've already purchased and returned two (the dell s718ql ust and the benq lk953 st), primarily because watching different rips from my extensive library (1080p bluray, 4k, 4k hdr) has been an exercise in frustration, it seems that every single title requires separate settings or fiddling in order to look decent, while some that i know are solid rips just look very poor, same goes for a lot of 4k hdr streaming content... yet if i throw the same stuff at my 4k hdr oled tv everything looks spectacular out of the box, and a lot of it is simply breathtaking.

another thing that i've found disappointing with these pixel shifting projectors is the "hdr" quality they offer, which was a main selling point for me, it simply doesn't have near the "pop" that 4k hdr tv has, which i attribute to their lack of contrast (deep blacks, bright whites) vs 4k hdr tvs.

all of that said, they do look stunning with some content, pixar movies for example, and they offer enough at a $2k (xiaomi mijia) price point where i could live with one until they improve, but it's hard for me to rationalize them at the $4k-$5k price points which is where the other two i owned were at.
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post #809 of 1550 Old 06-16-2019, 09:10 AM
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Vincent's review said 81.66%. I was considering this projector but i wonder if optoma p1 can really hit 90% for 1k more. I might just stick with traditional projectors...and 95% lag is really bad...
what percentage is 100% rec709 to dci-p3?
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post #810 of 1550 Old 06-16-2019, 09:20 AM
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Unless things have since since CES when it was introduced, Optoma rep says around $3,000; see the 2:20 mark in this video:

https://www.youtube.com/watch?v=IF-tP-8oenI
honestly, that looks like all of the other 0.47" pixel shifting ust projectors, with a different gui, no?
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