DXOMark posted a full sensor test review of the newly announced Sony a7 IV (Amazon/ B&H/ Adorama).
With a high score of 97 points, Sony A7 IV sensor wins the 7th position in the 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.
| α7IV | α7III | Z6II | R6 | S5 | |
| Overall score | 97 | 96 | 94 | 90 | 94 |
| Color reproduction | 25.4 | 25.1 | 25 | 24.2 | 25.1 |
| Dynamic range | 14.7 | 14.7 | 14.4 | 14.3 | 14.5 |
| Low light ISO | 3379 | 3722 | 3303 | 3394 | 2697 |
- Sony a7 IV is the first camera to feature a new 33-megapixel BSI CMOS sensor, achieving a high score of 97 on the DxOMark and is ranked 7th among all sensors including medium format. This score is the same as Nikon D810 and Sony RX1R II, and the sensor performance is close to that of Sony A1 (98 pints) and Sony a7R IV (99 pints).
- In terms of base sensitivity, Sony a7 IV has achieved good results in color reproduction and dynamic range, and the low light ISO has also been very good.
- Comparison with other models (color reproduction): In comparison with Sony a7 III, a slight improvement can be seen up to ISO400, but it is not so different. Subsequent sensitivities are similar, but Sony a7 III is slightly better. Compared to Canon EOS R6, Sony a7 IV was superior in almost all sensitivities, with a difference of 1.3 to 1.0 bits up to ISO400.
- Comparison with other models (dynamic range): In the low sensitivity range up to ISO200, a slight improvement is seen compared to Sony a7 III. It’s interesting that the gain switch is ISO 400 for Sony a7 IV instead of the ISO 800 for Sony a7 III. After that, they are almost the same. Compared to Canon EOS R6, R6 has a slightly lower maximum dynamic range than the Sony a7 IV, and it does not reach Sony a7 IV unless it is in the high sensitivity range.
- Comparison with other models (Low Light ISO): The sensor of Sony a7 IV has a similar result to Sony a7 III, and the difference is only -0.14EV. The EOS R6’s sensor is virtually the same as Sony a7 IV.
- Conclusion: The new Sony a7 IV sensor isn’t much different from the traditional 24MP sensor, but with a 37.5% increase in pixel count. This may seem like a gradual evolution, but with various improvements in still and video features, Sony a7 IV has become a very attractive option.
| SUPPORT CAMERAEGG, BUY FROM ONE OF OUR AFFILIATE RETAILERS, THANKS ! | ||
|---|---|---|
| Sony Alpha a7 IV | Check Price | Amazon/ B&H/ Adorama |
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
Read More Sony Camera Rumors
See also 2022 Sony Camera Deals.