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post #1591 of 1606 Old 12-29-2019, 11:10 AM
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Quote:
Originally Posted by DunMunro View Post
Lens cleaning wipes or a microfibre cloth should be fine.

It might be an HDMI/HDR configuration issue. What is your streaming device and does the signal pass through anything else?
My Fire TV (cube) is connected to a HDMI splitter with audio extractor. The splitter feeds to HMDI 2 port via 25FT cable. The projector does confirm that it's on HDR mode . I will try to connect the fire TV directly to see if issue goes away.
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post #1592 of 1606 Old 12-29-2019, 11:19 AM
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Quote:
Originally Posted by AJ82 View Post
My Fire TV (cube) is connected to a HDMI splitter with audio extractor. The splitter feeds to HMDI 2 port via 25FT cable. The projector does confirm that it's on HDR mode . I will try to connect the fire TV directly to see if issue goes away.
There are many variations, but typically you want a 4K HDR YCbCr 4:4:4 24p (for HDR content) signal from the streaming device to the projector. Enable the deep colour option to allow a 10 or 12bit signal HDR signal.

Last edited by DunMunro; 12-29-2019 at 12:00 PM.
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post #1593 of 1606 Old 12-30-2019, 05:58 AM
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Originally Posted by AJ82 View Post
Hello !
I ended up buying the UHD 50 and finally got around to setting it up the best I could. The image is awesome and I hope to put a post of my experience so far at some point. However I do see a small issue that has been bothering me. I was watching Madalorian (in HDR as per projector) and I noticed that the sky looked as if it has fringes of gray/white colors. Its noticable around the sun / brighter areas of sky. Then I saw the same effect while watching the Witcher too.

These issues are not visible on my plasama HDTV so I am wondering what is causing is on the projector. I have not noticed it with lights or other light sources . it always just the sky.

The projector is running on factory settings . Do I need to play around with settings? Can the lens be direty (do I clean with lens cleaning wipes?)
Ey AJ,

I have the same issue using an Apple TV 4k. When watching HDR content the ATV switches to 4:2:2 10/12bit HDR 24hz, but the Optoma somehow views it as 8bit and that causes banding.
If you force it to 4:2:0 then it works normally. I wonder why the Optoma can't output 4:2:2 10/12 bit at 24/30hz. The spec sheet states it should.
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post #1594 of 1606 Old 12-30-2019, 09:57 AM
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Quote:
Originally Posted by Dennis Dekkers View Post
Ey AJ,

I have the same issue using an Apple TV 4k. When watching HDR content the ATV switches to 4:2:2 10/12bit HDR 24hz, but the Optoma somehow views it as 8bit and that causes banding.
If you force it to 4:2:0 then it works normally. I wonder why the Optoma can't output 4:2:2 10/12 bit at 24/30hz. The spec sheet states it should.
How do I know what is the output of fire tv ? The projector says HDR on the top right corner but I don't know how to tell if its 8/10/12 bit?

Quote:
Originally Posted by DunMunro View Post
There are many variations, but typically you want a 4K HDR YCbCr 4:4:4 24p (for HDR content) signal from the streaming device to the projector. Enable the deep colour option to allow a 10 or 12bit signal HDR signal.
I am sorry but I don't know where this deep color option is . Could you please guide me? I tried to connect the projector directly to my fire cube but it did not resolve the issue. How do I know
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post #1595 of 1606 Old 12-30-2019, 10:20 AM
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Quote:
Originally Posted by AJ82 View Post
How do I know what is the output of fire tv ? The projector says HDR on the top right corner but I don't know how to tell if its 8/10/12 bit?

I am sorry but I don't know where this deep color option is . Could you please guide me? I tried to connect the projector directly to my fire cube but it did not resolve the issue. How do I know
The UHD50 menu->info screen will show the signal that the UHD50 is receiving. Ideally it will be HDR YCbCr 4:4:4 10 or 12bit.

I'm not familiar with the FireTV but in the HDR output options there should be something like this:

From the UBP-x700 manual:

[YCbCr/RGB (HDMI)]
[Auto]: Automatically detects the connected TV
type, and switches to the matching color setting.
[YCbCr (4:2:2)]: Outputs YCbCr 4:2:2 video
signals.
[YCbCr (4:4:4)]: Outputs YCbCr 4:4:4 video
signals.
[RGB]: Outputs RGB video signals.

[HDMI Deep Color Output]
[Auto]: Outputs 12bit/10bit video signals
when the connected TV is compatible with
Deep Color.
[Off]: Select this when the picture is unstable
or colors appear unnatural.
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post #1596 of 1606 Old 12-30-2019, 11:38 AM
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Optoma UHD50/UHD40 4:2:2 12bit 24hz

By the way! Hello all! Was lurking this thread for a long while now and i'm glad it's still pretty active! Let me take this moment before 2019 ends to ask about my one and only issue I have with this otherwise excellent projector!

Can somebody else check if he or she is able to get higher then 8bit colordepth with a chroma setting at 4:2:2 at whatever refreshrate you desire. I'm talking with Optoma support about this matter but they can't seem to grasp the situation.

I have an intel NUC working flawlessly at 12bit 4:4:4 24hz HDR. (Excellent!!!)
My Playstation Pro is working flawlessly at 8bit RGB 4:4:4 60hz. (18gbps)
All connected via a optical hdmi cable of 15 meters. (bless optical hdmi)

Then I have an ATV 4K that somehow wants to set all my HDR content to 4:2:2 10 or 12 bit at 24hz or 30hz which I understand, but rather have it go do 4:2:0 10bit.
However since I cannot adjust this unless I force it and switch between SDR and HDR content each time I rather have it all work automatically.
Maybe some of you have installed the latest firmware where they somehow fixed this issue without Optoma even knowing about it. Who knows!

Thank you all for taking the time check.
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post #1597 of 1606 Old 12-30-2019, 12:46 PM
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Quote:
Originally Posted by DunMunro View Post
The UHD50 menu->info screen will show the signal that the UHD50 is receiving. Ideally it will be HDR YCbCr 4:4:4 10 or 12bit.

I'm not familiar with the FireTV but in the HDR output options there should be something like this:

From the UBP-x700 manual:

[YCbCr/RGB (HDMI)]
[Auto]: Automatically detects the connected TV
type, and switches to the matching color setting.
[YCbCr (4:2:2)]: Outputs YCbCr 4:2:2 video
signals.
[YCbCr (4:4:4)]: Outputs YCbCr 4:4:4 video
signals.
[RGB]: Outputs RGB video signals.

[HDMI Deep Color Output]
[Auto]: Outputs 12bit/10bit video signals
when the connected TV is compatible with
Deep Color.
[Off]: Select this when the picture is unstable
or colors appear unnatural.

Thanks ! I didi check the Fire TV and it was set to 8 bit . I changed it to 10bit and PJ went to 4:4:? ( I don't remember but it was 0 IRRC) 10 bit from 8 bit. That does seem to help with banding. I am yet to check the other options you mentioned . I will come back with my findings.
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post #1598 of 1606 Old 01-03-2020, 03:10 PM
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Quote:
Originally Posted by Dennis Dekkers View Post
Ey AJ,

I have the same issue using an Apple TV 4k. When watching HDR content the ATV switches to 4:2:2 10/12bit HDR 24hz, but the Optoma somehow views it as 8bit and that causes banding.
If you force it to 4:2:0 then it works normally. I wonder why the Optoma can't output 4:2:2 10/12 bit at 24/30hz. The spec sheet states it should.
I just reread your post. So you are saying that UHD50 is accepting only upto 4:4:0? That's what I am getting after switching the fire TV to 12 bit colors. I have been wondering if the HDMI cable is faulty but from your post it sounds like UHD50 will go as high as 4:4:0 ? Do I have it right ? The banding issue does seem to be minimal at 4:4:0 though.
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post #1599 of 1606 Old 01-04-2020, 04:39 AM
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Quote:
Originally Posted by AJ82 View Post
I just reread your post. So you are saying that UHD50 is accepting only upto 4:4:0? That's what I am getting after switching the fire TV to 12 bit colors. I have been wondering if the HDMI cable is faulty but from your post it sounds like UHD50 will go as high as 4:4:0 ? Do I have it right ? The banding issue does seem to be minimal at 4:4:0 though.
All these different modes I sometimes get confused, but to make it clear. I have been testing many different combination and got all these modes working:


8bit RGB 4:4:4 60hz and lower.
10bit YUV 4:2:0 60hz and lower. (HDR)
12bit YUV 4:2:0 60hz and lower. (HDR)
8bit YUV 4:2:2 60hz and lower.
10bit YUV 4:4:4 30hz and lower. (HDR)
12bit YUV 4:4:4 30hz and lower (HDR)
12bit YUV 4:4:4 60hz and lower (SDR)

I was not able to do other modes with my gear.

For HDR content I set my players to either 12bit 4:4:4 24hz or 10bit 4:2:0 60hz (should not produce banding). This al works flawlessly.
I'm not familiar with the Fire TV players, but 4:4:0 10 or 12bit should be sufficient for all HDR movie material and no banding should be visible.

There is a firmware update for the UHD50 (several actually) but not for the UHD40. Maybe they improve the compatibility with other chroma (4:2:2) settings.
However don't worry about that to much. Not really relevant for movies.
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post #1600 of 1606 Old 01-04-2020, 04:44 AM
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Quote:
Originally Posted by Dennis Dekkers View Post
All these different modes I sometimes get confused, but to make it clear. I have been testing many different combination and got all these modes working:


8bit RGB 4:4:4 60hz and lower.
10bit YUV 4:2:0 60hz and lower. (HDR)
12bit YUV 4:2:0 60hz and lower. (HDR)
8bit YUV 4:2:2 60hz and lower.
10bit YUV 4:4:4 30hz and lower. (HDR)
12bit YUV 4:4:4 30hz and lower (HDR)
12bit YUV 4:4:4 60hz and lower (SDR)

I was not able to do other modes with my gear.

For HDR content I set my players to either 12bit 4:4:4 24hz or 10bit 4:2:0 60hz (should not produce banding). This al works flawlessly.
I'm not familiar with the Fire TV players, but 4:4:0 10 or 12bit should be sufficient for all HDR movie material and no banding should be visible.

There is a firmware update for the UHD50 (several actually) but not for the UHD40. Maybe they improve the compatibility with other chroma (4:2:2) settings.
However don't worry about that to much. Not really relevant for movies.
Last one on my list should be:

8bit YUV 4:4:4 60hz and lower (SDR) not 12bit (as this would surpass the max bandwidth for HDMI 2.0)
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post #1601 of 1606 Old 01-08-2020, 03:12 PM
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Sooo... I picked up a UB-420 and have been testing it out. It was on sale at London Drugs (sale ends tomorrow).

Right now, playing AIW, I am getting HDR Bt2020 4:4:4 10bit 24P and all looks well but with the Sony X700 the UHD50 was showing the same but 12bit. The Dynamic Range Optimizer really helps in producing an overall, seemingly brighter image, but with no loss of highlight or shadow details which allows me full advantage of my low gain ~145in grey painted screen. Also in Canada, it has a Prime Video 4K HDR streaming app which is nice as this was lacking on the X700. Our current plan is to move the Sony X700 to one of our other residences, in the US to take advantage of the X700's much larger suite of 4K HDR streaming apps down south.

Some initial impressions are that the UB420 doesn't upscale 1080p content to 4K as cleanly as the X700. Also the interface is less well laid out than on the X700 and the UB420's remote is truly terrible, as the non-back lit, 4-way selector, is tightly surrounded by curved buttons, that if accidentally pressed, will pull you completely away from whatever option you might have contemplated using... OTOH, it has a powerful transmitter that easily bounces off the screen to control the UB420, which is located behind our seating position.

Edit: The UB420 is definitely a step up in terms of HDR output and I think it'll be well worth the cost. I'll try and take some comparison photos in the next few days but it's tough to do a side by side with the X700 because the UHD50 only has a single HDMI 2.0 input.
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Last edited by DunMunro; 01-09-2020 at 10:16 AM.
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post #1602 of 1606 Old 01-14-2020, 05:31 PM
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Same problem

Quote:
Originally Posted by AJ82 View Post
How do I know what is the output of fire tv ? The projector says HDR on the top right corner but I don't know how to tell if its 8/10/12 bit?

I am sorry but I don't know where this deep color option is . Could you please guide me? I tried to connect the projector directly to my fire cube but it did not resolve the issue. How do I know
I am having this exact problem with my Apple TV. I called Optoma and they indicated the knew of the issue and we’re working to address it with a future firmware update. But please email Optoma and report this problem. If more people report it I am sure it will escalate the concern and increase our chances of getting a firmware update. You can report it by going to the Optoma website and clicking on contact us and then the technical support link.
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post #1603 of 1606 Old 01-14-2020, 05:33 PM
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Quote:
Originally Posted by Dennis Dekkers View Post
Ey AJ,

I have the same issue using an Apple TV 4k. When watching HDR content the ATV switches to 4:2:2 10/12bit HDR 24hz, but the Optoma somehow views it as 8bit and that causes banding.
If you force it to 4:2:0 then it works normally. I wonder why the Optoma can't output 4:2:2 10/12 bit at 24/30hz. The spec sheet states it should.
I also have this issue.
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post #1604 of 1606 Old 01-14-2020, 09:20 PM
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Quote:
Originally Posted by DunMunro View Post
Sooo... I picked up a UB-420 and have been testing it out. It was on sale at London Drugs (sale ends tomorrow).

Right now, playing AIW, I am getting HDR Bt2020 4:4:4 10bit 24P and all looks well but with the Sony X700 the UHD50 was showing the same but 12bit. The Dynamic Range Optimizer really helps in producing an overall, seemingly brighter image, but with no loss of highlight or shadow details which allows me full advantage of my low gain ~145in grey painted screen. Also in Canada, it has a Prime Video 4K HDR streaming app which is nice as this was lacking on the X700. Our current plan is to move the Sony X700 to one of our other residences, in the US to take advantage of the X700's much larger suite of 4K HDR streaming apps down south.

Some initial impressions are that the UB420 doesn't upscale 1080p content to 4K as cleanly as the X700. Also the interface is less well laid out than on the X700 and the UB420's remote is truly terrible, as the non-back lit, 4-way selector, is tightly surrounded by curved buttons, that if accidentally pressed, will pull you completely away from whatever option you might have contemplated using... OTOH, it has a powerful transmitter that easily bounces off the screen to control the UB420, which is located behind our seating position.

Edit: The UB420 is definitely a step up in terms of HDR output and I think it'll be well worth the cost. I'll try and take some comparison photos in the next few days but it's tough to do a side by side with the X700 because the UHD50 only has a single HDMI 2.0 input.
OK, I got the UB420 UHD BD 12bit 4:4:4 24P working:

I set 4k/60z to 4:4:4 (from auto)

Edit: ycbcr is auto (if set to 4:4:4) HDR fails on Netflix. However everything is playing at 60hz. 4:4:4 8bit. My x700 will play Netflix 4k HDR content at 24p, 12bit 4:4:4.

Deep colour is 12bit(auto) which is optimal for HDR BDs but results in posterization with Netflix. Setting Deep Colour to 10bit results in 60hz 10bit 4:2:0 and much superior HDR and no posterization.

I have the HDR Optimzer set to projector and: 'light room' with brightness at 0, tone curve white at -3 and tone curve black at +3. On some streamed 4K content I set tone curve white at -9. The ability to use the HDR optimizer whilst streaming 4K HDR content is a very nice feature.

These settings produce a brighter image but keep the highlights from blowing out and prevent the shadows from getting too blocked up; of course the HDR Optimizer settings will be somewhat room specific.

The UB420 has some nice audio features for us condo dwellers that I didn't notice on the X700, especially a dialogue enhancer which makes voices easier to hear at low volume settings and a night mode to keep the sound effects from getting too loud.

The UB420 audio enhancements really boost the quality of the stereo speaker output in the UHD50. If you're in an apartment or condo, the UB420/UHD50 might be all you need.

Last edited by DunMunro; Yesterday at 02:15 AM.
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post #1605 of 1606 Old Yesterday, 06:39 AM
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Has anyone had the "Fan Lock " error happen ? Its happened to mine maybe 3 times since buying it .... sames to run fine before and after the error shuts down the projector.... wondering if I should RMA it before the warranty is up in April ?
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post #1606 of 1606 Old Yesterday, 09:59 AM
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Quote:
Originally Posted by Purcey007 View Post
Has anyone had the "Fan Lock " error happen ? Its happened to mine maybe 3 times since buying it .... sames to run fine before and after the error shuts down the projector.... wondering if I should RMA it before the warranty is up in April ?
I would.
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