According to DXOMark, Sony’s A9 II sits 21st in their sensor database with an overall score of 93.

The Sony a9 II hit the shelves just in time for the upcoming 2020 Olympic games, but a few eyebrows were raised when the specs of the camera were released. The Sony a9 II uses the same sensor as the original a9, it has the same amount of AF points, the same base ISOs, the same screen and EVF, and, apart from a deeper grip, the camera is identical in appearance as well. The new Sony did feature an updated image processor, but how much difference has that made to the camera? Let’s find out after the break.
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https://www.thephoblographer.com/2020/03/15/dxomark-sonys-a9-ii-sensor-beats-the-1dxii-is-worse-than-the-a7-iii/