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Is a MacBeth Colour Rendition Chart the Safest Way to Calibrate a Camera?
www.colour-science.org/posts/the-colorchecker-considered-mostly-harmless/
“Unless you have all the relevant spectral measurements, a colour rendition chart should not be used to perform colour-correction of camera imagery but only for white balancing and relative exposure adjustments.”
“Using a colour rendition chart for colour-correction might dramatically increase error if the scene light source spectrum is different from the illuminant used to compute the colour rendition chart’s reference values.”
“other factors make using a colour rendition chart unsuitable for camera calibration:
– Uncontrolled geometry of the colour rendition chart with the incident illumination and the camera.
– Unknown sample reflectances and ageing as the colour of the samples vary with time.
– Low samples count.
– Camera noise and flare.
– Etc…“Those issues are well understood in the VFX industry, and when receiving plates, we almost exclusively use colour rendition charts to white balance and perform relative exposure adjustments, i.e. plate neutralisation.”
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RawTherapee – a free, open source, cross-platform raw image and HDRi processing program
5.10 of this tool includes excellent tools to clean up cr2 and cr3 used on set to support HDRI processing.
Converting raw to AcesCG 32 bit tiffs with metadata. -
What if China no longer needs Hollywood?
www.cnn.com/2021/01/28/media/china-box-office-coronavirus/index.html
“In 2020, China overtook the United States to become the top movie market in the world. The country, perennially the second-largest movie market, brought in $3.1 billion at the box office in 2020, according to Comscore (SCOR) — nearly $1 billion more than the United States did last year.
“If China doesn’t need US movies, Hollywood studios will have to dramatically reduce their spending on big budget blockbusters,” Aynne Kokas, the author of “Hollywood Made in China,” told CNN Business. “The current budgets are unsustainable without access to the China market. That could fundamentally change the model of the US film industry.”
“Regardless of what happens with Covid, we have at a minimum entered a world where the Chinese and US box offices are equally important,”
So where do Hollywood and China go from here? That question, like so many in the film industry right now, has no easy answer. Yet whatever the future of the film industry is, it’s likely to be one where Hollywood and China remain the two major pillars holding up the global box office.
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