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Tema: Samsung Q900R 8K

  1. #1
    honorable
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    Predeterminado Samsung Q900R 8K

    Regístrate para eliminar esta publicidad

    Abro este hilo por si algún "loco" se ha comprado este televisor y quiere contar sus impresiones.

  2. #2
    Anonimo070120193
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    Predeterminado Re: Samsung Q900R 8K

    Yo

  3. #3
    Anonimo070120193
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    Predeterminado Re: Samsung Q900R 8K

    NO

  4. #4
    honorable
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    Predeterminado Re: Samsung Q900R 8K

    Tengo curiosidad por saber si el reescalado que hace es tan bueno como anuncian.

  5. #5
    Anonimo070120193
    Invitado

    Predeterminado Re: Samsung Q900R 8K

    Duda resuelta (con muchísimos peros):

    https://www.flatpanelshd.com/review....&id=1544593461

    Highlights:

    Only ‘Movie’ mode respects the color space of the source input and it offers the most accurate white balance out-of-box

    It takes considerably more work to tune in the other picture modes and unfortunately the ‘Game’ mode is far off target and forces everything into DCI-P3 color space.

    It is not possible to fully turn off dynamic backlight control on Samsung’s TVs

    Q900R is not conforming to the PQ reference, which is the EOTF (Electro-Optical Transfer Function) used for HDR. These irregularities affect both highlights and the progression from dark to bright tones. This means that mid-tones and highlights appear brighter than intended and somewhat washed out

    Samsung claims that the 75- and 85-inch versions of Q900R can hit peak brightness of 4000 nits, which is the level that more and more HDR movies are being mastered at. However, in ‘Movie’ mode Q900R is not capable of hitting anywhere close to that level, which is documented in the graph to the right. Here, it is hitting peak brightness of 1800 nits but ironically this level cannot be realized in small segments of the picture (such as a 2% window) – only in larger areas.

    In Movie mode, Q900R also has inaccurate tracking of the PQ reference and starting from around 40 IRE (light grey), it starts to overshoot and make pictures appear brighter than intended. In actual use the effect will be that mid-tones are too bright and together with the blooming artefacts from the zone dimming system, the picture tends to look a little washed out at times.

    While an OLED TV’s brightness is in large part limited by the so-called ABL circuit, a full array local dimming LCD is limited in large part by the size of the individual dimming zones. When using an ANSI pattern, peak brightness hits around 730 nits, which more or less represents what you can expect in most situations when watching movies.

    At this time, there is almost no 8K content available so Samsung is turning its focus to upscaling in order to utilize the many pixels.

    We should note that this is not a new concept and the technology has already been deployed in other TVs without it having any reference to 8K resolution but because no manufacturers are keen to detail their upscaling system, we cannot assess whether or not Samsung’s latest implementation is more “intelligent” than other systems. At IFA 2018 in Berlin, Samsung positioned its AI upscaling engine almost as magic. It sounded too good to be true and, perhaps unsurprisingly, our tests reveal that the results are far more subtle

    Q900R upscales SD, HD, and 4K material well but it cannot justify the high premium you are paying for Q900R over Q9FN, in my opinion. If it is artificial sharpness that you seek you can add it by adjusting the “normal” sharpness setting in the menu and from a distance of 3 meters you are unlikely to spot the difference between an “AI” based approach and the traditional approach.

    Even with a large 75-inch screen you must reduce your viewing distance to less than 2 meters to fully enjoy Q900R’s resolution, and at this distance you get almost sunburned by the brightness.

    As mentioned earlier, there are not many ways to input real 8K material into Q900R and not even YouTube, which is one of the only services to offer 8K content, allows you to go beyond 4K via the built-in app. There is a single 8K channel in operation – in Japan – but in most regions channels are still broadcast in 720p or 1080i resolution. It will take many years for 8K to be realized on the content side and with Q900R I cannot help feeling a bit like the first person with a SMS-compatible smartphone.

    We dimmed the lights to test the LCD panel’s backlight homogeneity. Our critical eye did spot some inhomogeneity, with the center of the display looking darker than the edges, but this is actually partly caused by the anti-reflective coating. Because the TV is equipped with “only” 480 dimming zones, you will see some obvious blooming when the dimming zones start to engage. This is illustrated below
    pat12 ha agradecido esto.

  6. #6
    honorable
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    Predeterminado Re: Samsung Q900R 8K

    ¿Qué pasa?¿Ningún valiente ha comprado este modelo?

  7. #7
    asiduo Avatar de Rubopm
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    Predeterminado Re: Samsung Q900R 8K

    Con lo que cuesta ganar la pasta como para arriesgarse en ser conejillo de indias, con una tele 8K con hdmi 2.0. Esta al salir el modelo de este año con HDMI 2.1.
    Última edición por Rubopm; 20/01/2019 a las 17:35

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