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post #2911 of 3554 Old 03-28-2019, 07:03 PM
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Quote:
Originally Posted by Matsonia View Post
Just wanted some quick advice. Getting my 77C8 tomorrow and will be doing an autocal for SDR. I don't know much about the technicolour mode but for SDR but I was watching a calman autocal tutorial on youtube for the LG SDR mode and he used the technicolour preset with a power 2.4 gamma instead of BT1886. If you want to do day and night settings is it better to just calibrate both the ISF dark and bright modes using a 2.4 gamma for dark and 2.2 for bright or stick to BT1886 for the ISF dark mode.



Secondly I wont be calibrating HDR but what is the general consensus regarding which preset to use for HDR10 movies. Technicolour expert?


1) break your set in for a while before bothering to do a calibration. These sets tend to settle after a hundred plus hours.

2) for sdr I'd recommend using the supplied Day/night modes. I use 2.2 for day and 2.4 for night but with adjust black at .005.

3) since there's no real standard for hdr, just watch whichever one looks best to you


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post #2912 of 3554 Old 03-28-2019, 07:27 PM
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2018 LG OLED Calibration and User Settings (No price talk)

Quote:
Originally Posted by Matsonia View Post
Just wanted some quick advice. Getting my 77C8 tomorrow and will be doing an autocal for SDR. I don't know much about the technicolour mode but for SDR but I was watching a calman autocal tutorial on youtube for the LG SDR mode and he used the technicolour preset with a power 2.4 gamma instead of BT1886. If you want to do day and night settings is it better to just calibrate both the ISF dark and bright modes using a 2.4 gamma for dark and 2.2 for bright or stick to BT1886 for the ISF dark mode.



Secondly I wont be calibrating HDR but what is the general consensus regarding which preset to use for HDR10 movies. Technicolour expert?


The respective “CInema” modes are supposed to be the most accurate for hdr 10 and DV . Cinema home is more of a day mode for both . The autocal is pretty straight forward and Calman does a nice job of walking you thru everything . As mentioned above it’s really easy to do a day and night mode , depending on which meter you have I find the 26 pt non rolling to work best for my C6 meter . Congrats on the 77” I have had mine for about 6 weeks and am impressed with it everyday .


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post #2913 of 3554 Old 03-28-2019, 07:37 PM
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Hey all,

So after upgrading to the new firmware, I decided to recalibrate. I ran a Lightning LUT, and afterwards my dE average is 1.2 and max dE of 2.9 - so I'm obviously doing something wrong.

Cailibrating ISF-Expert Bright Room, target of ~180 cd/m2 (OLED Light = 50)

I'm using a VideoForge Pro and Spectracal C6 HDR. Latest version of Calman Home Enthusiast R3.

I'm using D-Nice's alternate whitepoint (0.3045 / 0.3292), Constant APL 25, Gamma Power 2.2, Colorspace rec.709/sRGB

Autocal dE Formula is de ICtCp (I noticed in advanced options there is a Cube DeltaE Formula, which is set to de2000, do I need to change that to de ICtCp too?)

I have the VideoForge Pro set to output 1080p @ 60hz, RGB Full 8-bit

For Grayscale Autocal I chose LG 26 pts SDR 16-235 (should I choose 16-255?), for the lightning LUT I'm choosing SMPTE+ (16-255). Black level on the TV is set to Low.

Anything jump out with something I'm setting wrong? Are the results of the Colorchecker simply because I'm using the alternate whitepoint or something? I watched some TV afterwards and I could definitely tell the image was more neutral (less warm).

Thanks!

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post #2914 of 3554 Old 03-28-2019, 09:53 PM
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Quote:
Originally Posted by chunon View Post
The respective “CInema” modes are supposed to be the most accurate for hdr 10 and DV . Cinema home is more of a day mode for both . The autocal is pretty straight forward and Calman does a nice job of walking you thru everything . As mentioned above it’s really easy to do a day and night mode , depending on which meter you have I find the 26 pt non rolling to work best for my C6 meter . Congrats on the 77” I have had mine for about 6 weeks and am impressed with it everyday .


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Do both cinema home and cinema mode use the full luminance of the panel for HDR? I was reading around and it seemed like with Dolby vision while Cinema is the most accurate. You don't get full luminance as you do with Cinema home. Is that correct? With normal HDR10 I believe You get full luminance with either Cinema or Cinema home. It just depends if your in a dark room or bright room? Just want to make sure im getting the most out of this panel with HDR content. Whats recommened for dynamic tone mapping setting also. On or off?
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post #2915 of 3554 Old 03-29-2019, 12:06 AM
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Quote:
Originally Posted by Matsonia View Post
Just wanted some quick advice. Getting my 77C8 tomorrow and will be doing an autocal for SDR. I don't know much about the technicolour mode but for SDR but I was watching a calman autocal tutorial on youtube for the LG SDR mode and he used the technicolour preset with a power 2.4 gamma instead of BT1886. If you want to do day and night settings is it better to just calibrate both the ISF dark and bright modes using a 2.4 gamma for dark and 2.2 for bright or stick to BT1886 for the ISF dark mode.

Secondly I wont be calibrating HDR but what is the general consensus regarding which preset to use for HDR10 movies. Technicolour expert?
Hope this post could help you.

https://www.avsforum.com/forum/139-d...l#post57799906
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post #2916 of 3554 Old 03-29-2019, 01:31 AM
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Quote:
Originally Posted by Matsonia View Post
Do both cinema home and cinema mode use the full luminance of the panel for HDR? I was reading around and it seemed like with Dolby vision while Cinema is the most accurate. You don't get full luminance as you do with Cinema home. Is that correct? With normal HDR10 I believe You get full luminance with either Cinema or Cinema home. It just depends if your in a dark room or bright room? Just want to make sure im getting the most out of this panel with HDR content. Whats recommened for dynamic tone mapping setting also. On or off?


I havent measured the home modes , I know for sure the Cinema Home mode is brighter for Dolby Vision so I guess it comes down to accuracy(directors intent) vs brightness. One advantage to calibrating hdr and dv is it increases the max nits vs ootb. You can have dynamic tone mapping on for hdr 10 although sometimes the pic looks a bit artificial imo for dv it should be off.


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post #2917 of 3554 Old 03-29-2019, 07:45 AM
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For those that have have both calman and lightspace...with LG's latest firmware has anyone tried doing a 1d lut in calman and then uploaded a 3dlut from lightspace? Results? I don't have a lot of tinker time unless my wife goes out of town for work


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post #2918 of 3554 Old 03-29-2019, 07:48 AM
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Originally Posted by Wjboshart View Post
For those that have have both calman and lightspace...with LG's latest firmware has anyone tried doing a 1d lut in calman and then uploaded a 3dlut from lightspace? Results? I don't have a lot of tinker time unless my wife goes out of town for work


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Check with Silly Sally he has done that.


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post #2919 of 3554 Old 03-29-2019, 07:51 AM
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Quote:
Originally Posted by Wjboshart View Post
For those that have have both calman and lightspace...with LG's latest firmware has anyone tried doing a 1d lut in calman and then uploaded a 3dlut from lightspace? Results? I don't have a lot of tinker time unless my wife goes out of town for work


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I had the same idea but the problem is that with the new LG firmware 4.10.31 you have to set brightness up to 56-57 and so the CalMAN 1D LUT won't match anymore because therefore you need brightness at 50 as a bypass setting.

That means with this firmware and 1D LUT AutoCal you will get a black crush.
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post #2920 of 3554 Old 03-29-2019, 07:54 AM - Thread Starter
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Quote:
Originally Posted by Wjboshart View Post
1) break your set in for a while before bothering to do a calibration. These sets tend to settle after a hundred plus hours.

2) for sdr I'd recommend using the supplied Day/night modes. I use 2.2 for day and 2.4 for night but with adjust black at .005.

3) since there's no real standard for hdr, just watch whichever one looks best to you


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On the C8 I don't feel you need to adjust black to .005 like you needed to do on the older LGs. LG has pretty much fixed the black crush problem. I find I get better results leaving the black level at what's read at 0%. If you are worried about the value changing while you are calibrating, you can read black first then manually set it.
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post #2921 of 3554 Old 03-29-2019, 08:00 AM
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I had the same idea but the problem is that with the new LG firmware 4.10.31 you have to set brightness up to 56-57 and so the CalMAN 1D LUT won't match anymore because therefore you need brightness at 50 as a bypass setting.

That means with this firmware and 1D LUT AutoCal you will get a black crush.
I don't agree. With brightness at 50 as a bypass setting, then the 1D LUT will do its thing just like before and set the correct values across the range.

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post #2922 of 3554 Old 03-29-2019, 08:10 AM
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Originally Posted by mrtickleuk View Post
I don't agree. With brightness at 50 as a bypass setting, then the 1D LUT will do its thing just like before and set the correct values across the range.



See attached.


Sorry but how does that prove there is no black clipping?


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post #2923 of 3554 Old 03-29-2019, 08:25 AM
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Originally Posted by mrtickleuk View Post
I don't agree. With brightness at 50 as a bypass setting, then the 1D LUT will do its thing just like before and set the correct values across the range.



See attached.


Just use a simple Pluge pattern or when you have Ted's disc so you will easily see that you have a black crush. It's starts flashing at 19/20 your results mean nothing.
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post #2924 of 3554 Old 03-29-2019, 08:36 AM
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Originally Posted by BlackJoker View Post
Just use a simple Pluge pattern or when you have Ted's disc so you will easily see that you have a black crush. It's starts flashing at 19/20 your results mean nothing.
Fair enough, I shall try. Need to re-do my calibration first though!

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post #2925 of 3554 Old 03-29-2019, 08:45 AM
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Originally Posted by BlackJoker View Post
Just use a simple Pluge pattern or when you have Ted's disc so you will easily see that you have a black crush. It's starts flashing at 19/20 your results mean nothing.


Just checked that myself...weird how the calibration is determining grey levels to be accurate, but still clip black.


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Quote:
Originally Posted by Wjboshart View Post
Just checked that myself...weird how the calibration is determining grey levels to be accurate, but still clip black.


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I told you so

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@WiFi spy are you looking into this ?


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2018 LG OLED Calibration and User Settings (No price talk)

Quote:
Originally Posted by Wjboshart View Post
Just checked that myself...weird how the calibration is determining grey levels to be accurate, but still clip black.


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Sorry double post

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post #2929 of 3554 Old 03-29-2019, 09:53 AM
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I told you so


Smarta** lol! Thankfully ted had already pushed ls fix(ish)


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post #2930 of 3554 Old 03-29-2019, 10:52 AM
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Quote:
Originally Posted by Matsonia View Post
Just wanted some quick advice. Getting my 77C8 tomorrow and will be doing an autocal for SDR. I don't know much about the technicolour mode but for SDR but I was watching a calman autocal tutorial on youtube for the LG SDR mode and he used the technicolour preset with a power 2.4 gamma instead of BT1886. If you want to do day and night settings is it better to just calibrate both the ISF dark and bright modes using a 2.4 gamma for dark and 2.2 for bright or stick to BT1886 for the ISF dark mode.

Secondly I wont be calibrating HDR but what is the general consensus regarding which preset to use for HDR10 movies. Technicolour expert?
Hi, when you are using internal LUT capabilities for SDR 3D LUT, all settings (except Brightness/Contrast/Color/OLED Light) will be bypassed when the TV will received custom 1D and 3D LUT tables, so the difference per each preset (Cinema/ISF) will be only the name of the preset, except the Game mode which will have less latency.

When you do internal 1D LUT, the Brightness should stay at 50, for the 1D LUT to work. If you set other settings from 50, it will not work, but with latest FW of LG, the BR setting has to be increased a lot, 55-56 for example. This introduce problem to 1D LUT calibration.

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post #2931 of 3554 Old 03-29-2019, 10:59 AM
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Quote:
Originally Posted by chunon View Post
The respective “CInema” modes are supposed to be the most accurate for hdr 10 and DV . Cinema home is more of a day mode for both.
Cinema DV mode is the more accurate mode, the Cinema Home DV mode is not a brighter, but its a mode with different tone mapping and PQ tracking; it can look more impressive... but the reality is that its more inaccurate from Cinema DV.
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post #2932 of 3554 Old 03-29-2019, 11:18 AM - Thread Starter
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Quote:
Originally Posted by ConnecTEDDD View Post
Cinema DV mode is the more accurate mode, the Cinema Home DV mode is not a brighter, but its a mode with different tone mapping and PQ tracking; it can look more impressive... but the reality is that its more inaccurate from Cinema DV.
Agreed but i'm not sure you can say the DV Cinema Home picture mode is not brighter. If you look at a DV Cinema Home scan, you will see it significantly deviates from the EOTF curve with the intent to make the picture look brighter, this is directly from LG. When switching between DV Cinema and DV Cinema Home PMs the overall picture "looks" brighter at the expense of accuracy in the DV Cinema Home PM.

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post #2933 of 3554 Old 03-29-2019, 11:21 AM
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Originally Posted by jrref View Post
Agreed but i'm not sure you can say the DV Cinema Home picture mode is not brighter. If you look at a DV Cinema Home scan, you will see it significantly deviates from the EOTF curve with the intent to make the picture look brighter, this is directly from LG. When switching between DV Cinema and DV Cinema Home PMs the overall picture "looks" brighter at the expense of accuracy in the DV Cinema Home PM.
It can be measured as 'more brighter' because its more un-calibrated.

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post #2934 of 3554 Old 03-29-2019, 11:43 AM
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I am still on 4.10.15 (C8) and I wonder if I should update or wait. But the advantages of 4.10.31 are tempting.

Is it possible to compensate the black crush introduced by FW 4.10.31 by rising the brightness setting to 56 or 57 without sacrificing black level?


(manual calibration, no Calman)

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post #2935 of 3554 Old 03-29-2019, 11:47 AM - Thread Starter
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I can be measured as 'more brighter' because its more un-calibrated.
Exactly, the peak luminance is the same but because DV Cinema Home deviates toward brighter from the EOTF curve, uncalibrated, to you eye it looks brighter.

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post #2936 of 3554 Old 03-29-2019, 12:27 PM
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Quote:
Originally Posted by jrref View Post
Exactly, the peak luminance is the same but because DV Cinema Home deviates toward brighter from the EOTF curve, uncalibrated, to you eye it looks brighter.



See below.


The white point stays calibrated, it just has a different tone curve for brighter viewing environments.
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post #2937 of 3554 Old 03-29-2019, 12:42 PM
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Originally Posted by BlackJoker View Post
Just use a simple Pluge pattern or when you have Ted's disc so you will easily see that you have a black crush. It's starts flashing at 19/20 your results mean nothing.
On my C6, I could succesfully get 18 blinking while 16 was left blsck, but could never get 17 to be visible without bringing 16 with it (meaning black is no longer black).

What results are you able to get with Ted's pluge pattern with your C8 after calibration? Is 17 visible above black? I'd love to see a graph of near-black in R,G,B if possible (here's mine ftom my C6):
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post #2938 of 3554 Old 03-29-2019, 12:54 PM - Thread Starter
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Quote:
Originally Posted by WiFi-Spy View Post
The white point stays calibrated, it just has a different tone curve for brighter viewing environments.
And you can see this looking at the xy 100% data in the table below the graphs in the scans I attached.

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post #2939 of 3554 Old 03-29-2019, 02:24 PM
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Originally Posted by BlackJoker View Post
I had the same idea but the problem is that with the new LG firmware 4.10.31 you have to set brightness up to 56-57 and so the CalMAN 1D LUT won't match anymore because therefore you need brightness at 50 as a bypass setting.

That means with this firmware and 1D LUT AutoCal you will get a black crush.
Sorry I'm a bit confused. Why can't you leave the brightness at 50%? Does it cause black crushing?
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post #2940 of 3554 Old 03-29-2019, 02:27 PM
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Quote:
Originally Posted by Amirhosein Herandy View Post
Sorry I'm a bit confused. Why can't you leave the brightness at 50%? Does it cause black crushing?


Because at 50 it clips black


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