During testing, the Philips PML9009 performed best in the factory "Filmmaker" mode, which we evaluated across both SDR and HDR content. A key characteristic observed in this mode is the EOTF curve’s behaviour in HDR content and gamma settings in SDR, designed to enhance image accuracy. However, the PML9009 presented noticeable issues, particularly with white balance, as a pronounced red dominance created a yellow tint across the entire image. This affected skin tones and white areas, with faces and whites appearing unnaturally warm. The colour shift was confirmed through the "ColourChecker" palette, where colours leaned towards warmer shades.
In the gamma analysis, responsible for image contrast, we noticed considerable inaccuracies early on. Our measured values spiked above the reference, causing dark scenes to lose detail and merge visually up to about 10% screen brightness. Following this, the values dropped below the target line, further degrading contrast—an area already challenging for this model.
In HDR content, the white balance remained similarly flawed, and the EOTF curve also restricted brightness levels, resulting in a dim, muted image. Colour inaccuracies were even more pronounced here, with lower luminance levels causing large deviations from accurate colours, which were clearly visible on the error graph, often exceeding acceptable limits. While aiming for cinematic quality, this mode ultimately fell short in delivering balanced colour and contrast fidelity.
We tested the U7S Pro, as we always do, in the best factory-tuned picture mode, Filmmaker Mode. The colors can be judged in two ways. The most disappointing was the profile intended for watching SDR content, i.e. traditional broadcast TV, YouTube, and other less demanding material. The image there was clearly yellowish, which turned out to be a direct consequence of a poorly set white balance. As our charts show, there's a large deficiency in the blue component, which drastically affected the overall color temperature. You can see this clearly on the ColorChecker charts and on the color gamut graphs themselves, where most samples shifted toward yellow. Fortunately, the factory HDR mode performed much better. There, color errors hovered around a Delta E of 3, which is a solid result.