Sony A7S III is a full-frame camera optimized primarily for video. Its 12.1 MP sensor has large pixels that give exceptionally clean images in low light, and 15+ stops of dynamic range in S-Log3. Internal 4K recording up to 120 fps in 10-bit 4:2:2 opens room for smooth slow-motion shots.
The sensor and image processing are shared with the Sony FX3 camera, so it is an ideal combination for two-camera setups. It also has an electronic viewfinder, which is valuable when working in direct sunlight, and a 16-bit RAW output via HDMI for external recorders.
Ideal for
Why Sony A7S III
- Exceptional performance in low light – large pixels and dual base ISO.
- 4K up to 120 fps in 10-bit 4:2:2 without significant cropping.
- Image matching the FX3 – simple combining in the edit.
- Electronic viewfinder 9.44 million points for working in sunlight.
On set
The set includes a SmallRig cage, three NP-FZ100 batteries with charger and a case. For night shots we recommend fast Sony G-Master lenses and S-Log3 profile with native ISO 12800.
Image
| Sensor | Full Frame Exmor R BSI CMOS, 12.1 MP |
|---|---|
| Max. resolution | 4K UHD (3840 × 2160) |
| Dynamic range | 15+ stops |
| Sensitivity | ISO 80 – 102400 (dual base in S-Log3) |
Recording
| Codecs | XAVC S, XAVC HS, XAVC S-I (10-bit 4:2:2) |
|---|---|
| RAW | 16-bit RAW via HDMI (external recorder) |
| Max. frame rate | 4K 120 fps, Full HD 240 fps |
| Recording media | CFexpress Type A / SD (2 slots) |
Body and controls
| Bayonet | Sony E-mount |
|---|---|
| ND filters | no |
| Image stabilization | yes, 5-axis in-body |
| Autofocus | yes, Fast Hybrid AF |
| Power | NP-FZ100, USB-C |
| Weight | approx. 699 g (with battery and card) |
