Chasing middle gray

“We’re no longer exposing for middle gray and letting the rest “roll off.” […] Through all of these techniques, it’s important to recognize that our old friend and exposure aid, middle (18%) gray, will be of limited usefulness, as middle gray will shift with the audience’s adaptation to brightness changes. It may be possible for... Continue Reading →

A Cinema Luminance Range by the People, for the People: Viewer Preferences on Luminance Limits for a Large-Screen Environment, by Suzanne Farrell, Timo Kunkel, and Scott Daly

A number of websites have published the findings of Dolby's study of luminance preferences for the small screen, yet they all but ignore the fact that Dolby also conducted a similar study with a large screen. Many assume that the larger screen in a movie theater only needs a fraction of the luminance of a... Continue Reading →

HDR Panelist Calls Colorists Children

“It seems to me that where the cinematographer locates the exposure is going to bécome an incredibly political issue, because where you place that, and where that could be shifted by a kid in.a grading suite somewhere that you've never met and never will meet, it's gonna be such an important issue from now on... Continue Reading →

HDR Requires Larger LUTs

JD Vandenberg, Director of Post Production @ The Walt Disney Studios, found that 33X33X33 LUTs developed for SDR are too small for working with HDR footage. So what’s the minimum size 3D LUT required to minimize visual artifacts in PQ HDR content? Vandenberg’s study concluded that 10-bit material necessitates the use of LUTs that are... Continue Reading →

HLG’s Lack of Saturation “Not Very Commercially Compelling”

https://youtu.be/1r56JCpIMIs?si=H802qIF7v5mGGRsL https://youtu.be/YzVz4nxaT60?si=Xwz8DwVST2e5C0H4 The HLG format, by design, has the lowest saturation of all formats because it preserves the chromaticity of the scene as imaged by the camera; all other formats increase saturation compared to the scene as imaged by the camera. Earlier studies have shown that colorimetrically accurate reproduction of natural scenes does not necessarily... Continue Reading →

You Don’t Want BT.2020

"To be honest, the full gamut of 2020, I don't think we're ever going to see it. 95% of the Pointer's gamut, which covers most of the naturally reflected colors in nature - trees, fruits, skin tones and everything - it's about P3, it's slightly larger than P3. Those primaries of 2020 gamut and with... Continue Reading →

DCI: Colorists Have An Aversion To Colors Beyond P3

When the DCI (Digital Cinema Initiatives), a joint venture of Disney, Paramount, Sony Pictures Entertainment, Universal and Warner Bros. Studios, published its recommendations for next-gen HDR theatrical presentation in High Dynamic Range D-Cinema Addendum Version 1.0, a black level of 0.005 cd/m2 and peak brightness of 300 cd/m2, for an overall contrast ratio of 60000:1,... Continue Reading →

Is A Camera With 10 Stops Of Dynamic Range HDR?

Standards for HDR have been established by various industry organizations for displays but as yet, no similar initiative has been undertaken in the camera industry, though manufacturers almost without exception make exaggerated claims for the dynamic range of their cameras. It is said that photochemical film is capable of 13+ stops, though this varies greatly... Continue Reading →

Michael Zink

You might well wonder how one mortal could possibly wear so many hats, but Michael Zink is Vice President, Emerging Technologies at WarnerMedia, President & Chairman @ UHD Alliance, Education Vice President @ SMPTE, and Co-Chair, UHDTV Committee, Motion Imaging Technology Council (MITC) of the American Society of Cinematographers. In other words, he's someone worth... Continue Reading →

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