- 35mm 855.6mm2
- 24.3 megapixels
- ISO 100 - 25,600
- Go in depth with our full Sony A99 Review.
- See real-world photos taken with the A99.
- Succeeded by the Sony A99 II
- Compare A99 vs A99 II
- Compare SONY A99 II vs LEICA Q2
Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.
Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.
You can learn more at our glossary entry.
Maximum effective ISO test data courtesy of DxO Mark.
Q test data on DxO Mark A99 test data on DxO Mark