Samsung UE65KS9500 HDR TV Review

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“Unfortunately in an effort to correctly track PQ (perceptual quantizer) EOTF (electro-optical transfer function) whilst resolving detail up to 4000+ nits, Samsung’s tone-mapping algorithm introduced visible posterisation in what should be smooth gradients (e.g. the skies in The Revenant and The Martian). These banding artefacts could be reduced but not completely eradicated by switching to the [Standard] picture preset or engaging [HDR+ Mode], but once we measured and calibrated these modes to track PQ curve and Rec.2020 colours as close as possible (yes, we leave no stone unturned), the posterization reared its ugly head again. Of course, [HDR+ Mode] involved other compromises too (as we’ll describe in the next section), making it a no go.”

 

BVVB

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