HDR & ACES: a 1-day Technical Seminar

with Charles Poynton hosted at Mr X Gotham, Manhattan On Thu Aug 11, in collaboration with Mr X Gotham (Manhattan), I’ll present a one-day technical seminar on HDR and wide colour gamut for d-cinema, HD/UHD/4K/8K. ACES is important in high-end production, and is becoming increasingly useful in CGI/VFX and DI. The ACES block diagram serves …

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Emergent Technology in D-cinema and UHD/4K

High Dynamic Range, Wide Colour Gamut, and ACES 1.0 A Seminar with Charles Poynton hosted by SKYLAB HQ/Screen Dragon, Vancouver, BC Tue Feb 23, 10:00 – 17:00 Three important emerging technologies touch acquisition, post production/DI (especially colour grading), studio display, mastering, and distribution for cinema and UHD/4K: high dynamic range (HDR), wide colour gamut (WCG), and ACES 1.0. …

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“Mid”-grey, why not 50%?

If you visit your local photography store, they will happily sell you a mid grey (gray) test card. Many brands are available; let’s take Kodak’s R‑27 as an example. Such cards do not have 50% reflectance. They typically have reflectance close to 18%. This information can be found in the relevant Wikipedia articles (Middle gray, …

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Luminance in SI units

Does Hollywood use film 1 3/8 inches wide? No, it’s a trick question. Most movies don’t use film at all, any more! But if they did, or when they did, it was 35 mm film. I find it curious that millimetre has been the common unit for expressing film width in the US, but virtually all other measurements …

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