There's a pattern to help you assess which color space to select from a UHD player or set-top box-a new, designed-from-scratch pattern that's said to be "the very best signal pattern" for this purpose-and new tools to help evaluate the specific tone-mapping decisions made by the display maker in adapting high brightness HDR content to their display's capabilities. True to its name, the disc offers newly developed options for evaluating both the wide color space and tone mapping associated with HDR displays.
HDR is usually mastered today at 1,000 or 4,000 nits, but S&M has included levels at 100 (SDR) 600 1,000 2,000 4,000 and 10,000 nits-thus accounting for all the trim pass levels for Dolby Vision and for future content and displays that are yet to be invented. Among the innovations in this new edition are multiple versions encoded for most of the test patterns, with metadata and peak levels adjusted for a wide variety of HDR displays.
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