Canon R3 vs Sony A1 chroma noise comparison

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The initial video, as mentioned by others, is very flawed because it does not compare images at the same magnification. This recent article, Why Lower Resolution Sensors Are Not Actually Better In Low Light, explains it well.
 
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Doug Herr said:
It helps to define what makes one better than another, depending on what is being compared. Using the car analogy, is the goal comfort? Safety? Off-road capability? Fuel use? The determination of the 'better' vehicle depends on how it's used and what the objective is.

Same for cameras. Are you comparing chroma noise at a specified image size? At pixel level? The results can and often will depend on what you're interested in. Pixel level noise means little if I'm interested in a 24" x 36" print. If that's the print size I want, I'll compare the two cameras by making a 24" x 36" print from each one.
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Yes, personally, for wildlife shooting, as I stay in a tropical region will dull cloudy conditions for about 7 months a year with not so great air quality, ISO performance, chroma noise, & dynamic range performance is more important than anything.

For me an A7 iii sensor is far better than an A9 i sensor. Same with Z6 when compared to D850 etc.
 
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