The Sony a9II and Sony a9 sensor are relatively similar with the a9II having a slight lead at base ISO, but it is unclear if these measurements were made with the electronic shutter or not because the Sony a9II results do not list with and without Electronic Shutter (ES). The Low light performance of the a9II and a9 ES are identical and closer in dynamic range than the non-ES a9 measurements, which are lower, but have better low light performance.
| Camera Model | Maximum PDR |
Low Light ISO |
Low Light EV |
|---|---|---|---|
| Sony a9II | 10.90 | 5709 | 10.84 |
| Sony a9 | 10.47 | 6612 | 11.05 |
| Sony a9 ES | 10.64 | 5709 | 10.84 |
You can manipulate the above chart here and compare the new a9II with other cameras too.
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Sony a9II: B&H Photo / Amazon / Adorama
Sony a9: B&H Photo / Amazon / Adorama