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“The series is worth a watch if you want to know more about HDR workflows.” —Matthew Allard, ACS Doug Guerra, a prolific video producer for B&H Photo, hosted a two-part series introducing HDR workflows that contains countless serious errors. Misunderstanding PQ CLAIM "HDR10 uses a standard known as ST 2084 or Rec. 2100. They are... Continue Reading →
Charles Poynton has repeatedly stated that Dr. Kenichiro Masaoka - the developer of BT.2020 - intended the wide color gamut standard solely as a container, not as a mastering color space. The evidence shows otherwise. Masaoka’s correspondence, published papers and presentations show that BT.2020 was engineered as a forward-looking mastering color space, contingent on emerging... Continue Reading →
Format: RAW ST CLog2 Resolution: 4096x2160 Bit Rate: 398 Mbps Frame Rate: 24.00 P Lighting: Natural daylight Lens: Sigma 56mm f/1.4 DC DN RF Mount Exposure: ISO 800, f/1.4 Download here
In his presentation Debunking “HDR”, cinematographer Steve Yedlin shows a slide of BT.1886 to argue that it inherently matches human visual perception. To support his claim, Yedlin points to the distribution of code values: “This has been the theme the whole time, is that the human visual system is relative more than absolute. So it's... Continue Reading →
In Debunking “HDR”, Steve Yedlin says, “it doesn't matter what the curve shape is as long as you know what the curve shape is.” Yet he has no idea what PQ is, who developed it, or why. He mislabels PQ as logarithmic: “And by the way the shape of this curve this logarithmic curve used... Continue Reading →
“There used to be this in-place system… it was this kind of system that worked and made an artful color rendering… and it did so repeatedly and reliably… [that] locked system… basically went in the trash can and we now have a completely unlocked system [1].” —Steve Yedlin, ASC, describing the transition from film to... Continue Reading →
Keep color encoding and color space separate I’ve been writing about this for a while now. Rod Bogart, Principal Color Scientist at Epic Games, says it much better than I ever could. Color space ≠ color encoding “When we say linear RGB, it's telling us two important properties of the color value that we have,... Continue Reading →
The Daejeon Chronicles 