Sony a7 IV just scored a 97 in DxOMark Tests
“The Sony A7 IV sensor achieved a high score of 97 in our benchmarking, which puts it in joint 7th position in our rankings for all sensor sizes, including medium format. That places the Sony A7 IV sensor performance alongside the older high-res full-frame sensors in the Nikon D810 and Sony Cyber-shot RX1R II compact, and just behind the Sony A1 and Sony A7R IV at 98 and 99 points, respectively.”
Dynamic Range tests note “implementation of the second read-out mode at ISO 400, instead of ISO 800 in the A7 III. Although this results in DR of just over 14 stops at ISO 400, equating to around +1.2 EV uplift over the A7 III”
And in conclusion, “While the new sensor doesn’t perform a lot differently from the outgoing device, there has been a useful increase in the overall pixel count of 37.5% (albeit a 16.8% increase in linear pixel count on the long-edge). This may appear somewhat incremental, but when combined with the various improvements in stills and video features, the new Sony A7 IV is an incredibly well-rounded hybrid and a highly attractive option for all sorts of genres.”
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