Wow, what a camera! Sony’s already wowed us with the earlier iterations of the A7R, but for the third go-around, they’ve managed to out-do themselves. Sony keeps what we love about the A7R series — high-resolution image quality with excellent dynamic range and high ISO performance — and yet introduces numerous improvements, many of which have been brought over from their flagship A9.
Amazing image quality & improvements despite same 42MP sensor
Looking at the specs, you’ll notice the same 42.4-megapixel full-frame sensor from the A7R II sits inside the A7R III. Despite this, Sony’s managed to eke out some more performance from the same silicon thanks to improved circuitry and a faster, more advanced BIONZ X image processor. In particular, Sony claims the dynamic range is improved, and this proved to be the case, especially at lower ISOs. Further, we saw improved high ISO performance as well as better hue accuracy and skin tone reproduction.
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https://www.imaging-resource.com/PRODS/sony-a7r-iii/sony-a7r-iii-image-quality.htm
