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NocnyJastrzab
Joined: 16 Apr 2023
Posts: 3
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| Posted: Wed May 17, 2023 8:19 pm Post subject: |
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The above doubts are already clarified and I went to practice, where another strange and disturbing situation happened to me. As part of the training, I visited a friend who has a several-year-old LG OLED55C8PLA TV. I measured for SDR in Technicolor expert mode. In the Before/After report I had quite good results, but when I turned on the TV material, the picture was terribly patchy, as if with a strong posterization. I suspect that some settings were redundant or accidentally entered by feel to achieve the best results in the entire range. Has anyone on the forum had a similar experience?
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Wed May 17, 2023 8:37 pm Post subject: |
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| NocnyJastrzab wrote: | | The above doubts are already clarified and I went to practice, where another strange and disturbing situation happened to me. As part of the training, I visited a friend who has a several-year-old LG OLED55C8PLA TV. I measured for SDR in Technicolor expert mode. In the Before/After report I had quite good results, but when I turned on the TV material, the picture was terribly patchy, as if with a strong posterization. I suspect that some settings were redundant or accidentally entered by feel to achieve the best results in the entire range. Has anyone on the forum had a similar experience? |
Hi! You best bet if you have questions on the results obtained is to send that report to support@ChromaPure.com and they will be able to review and let you know. They do not actively monitor this thread. Cheers!
Kal
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Ron W
Joined: 07 Aug 2009
Posts: 860
Location: Mississauga
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| Posted: Sun May 21, 2023 3:17 am Post subject: |
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| NocnyJastrzab wrote: | | The above doubts are already clarified and I went to practice, where another strange and disturbing situation happened to me. As part of the training, I visited a friend who has a several-year-old LG OLED55C8PLA TV. I measured for SDR in Technicolor expert mode. In the Before/After report I had quite good results, but when I turned on the TV material, the picture was terribly patchy, as if with a strong posterization. I suspect that some settings were redundant or accidentally entered by feel to achieve the best results in the entire range. Has anyone on the forum had a similar experience? |
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If I am interpreting correctly what you are trying, in the case of DVS the patterns on disc and those downloadable on to a hard drive are strictly HDR, HLG and Dolby vision, all of which have a white point at a considerably higher level than normal SDR hence, they cannot be used for that application. Even though I only own the DVS HDR, I know the downloadable hard drive patterns usually are plugged directly into one of the USB inputs in the monitor using its media player to manually advance the patterns. If calibrating SDR is your goal and you have the Chroma Pure software, it would be best to reset the monitor to the default settings, make sure black levels are correct, then hook up your computer via HDMI to the monitor using the pattern generator within the software itself.
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TomHuffman
Joined: 01 Jun 2010
Posts: 76
Location: Springfield, MO
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| Posted: Thu Jan 18, 2024 12:42 am Post subject: |
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| NocnyJastrzab wrote: | | The above doubts are already clarified and I went to practice, where another strange and disturbing situation happened to me. As part of the training, I visited a friend who has a several-year-old LG OLED55C8PLA TV. I measured for SDR in Technicolor expert mode. In the Before/After report I had quite good results, but when I turned on the TV material, the picture was terribly patchy, as if with a strong posterization. I suspect that some settings were redundant or accidentally entered by feel to achieve the best results in the entire range. Has anyone on the forum had a similar experience? |
This sort of result is usually the result of defective calibration controls on the TV. I recall getting this back in the day with Toshiba displays. Even the then highly-thought-of Pioneer plasma had a broken CMS control that did more harm than good.
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