Intro
The Sony a7R IV is the company’s fourth-generation ultra-high-resolution full-frame mirrorless camera. It’s built around a new 61MP back-side illuminated CMOS sensor. It’s the first new sensor in an ‘R’ camera since 2015.
The new chip has 567 on-sensor phase detection points, which cover 99.7% of the sensor’s height and 74% of its width, meaning you get depth-aware focus across a huge range of the sensor.
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https://www.dpreview.com/articles/3979321923/sony-a7r-iv-what-you-need-to-know
