DxOMark published their Sony a7 IV ($2,498) sensor review and test results – Sony a7 IV’s 33MP full-frame Exmor R CMOS sensor achieved an excellent overall DxOMark sensor score of 97 points (just 1 point behind the Sony a1), with a combination of 25.4 bits color depth, 14.7 EV dynamic range, and 3379 ISO low-light score.
Sony a7 IV Key Features:
- 33MP Full-Frame Exmor R CMOS Sensor
- Up to 10 fps Shooting, ISO 100-51200
- 4K 60p Video in 10-Bit, S-Cinetone
- 3.68m-Dot EVF with 120 fps Refresh Rate
- 3″ 1.03m-Dot Vari-Angle Touchscreen LCD
- 759-Pt. Fast Hybrid AF, Real-time Eye AF
- Focus Breathing Compensation
- 5-Axis SteadyShot Image Stabilization
- Creative Looks and Soft Skin Effect
- 4K 15p UVC/UAC Streaming via USB Type-C
Conclusion from DxOMark:
As the 24 MP BSI-CMOS full-frame sensor equips the out-going Sony A7 III, and the majority of Sony’s rivals at this level, the new 33 MP BSI-type CMOS in the Sony A7 IV will also probably appear in forthcoming competitor’s models, so the results are doubly interesting.
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.