Sony a7S III Mirrorless Camera (Body)
The reference low-light and video body in the Alpha line: 12.1MP full-frame with 4K 120p and dual base ISO. Available from Prosales, South Africa's authorised Sony dealer.
SKU: CAMSOILA7SM3
AvailabilityIn stock, ready to dispatch
In stock and dispatched from our Johannesburg warehouse.
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The Sony a7S III (ILCE-7SM3) is the reference low-light and video body in the Alpha line. Its 12.1MP full-frame Exmor R sensor with dual base ISO delivers exceptionally clean footage where other cameras struggle, and records 4K up to 120p in 10-bit internally. With 15-plus stops of dynamic range, active cooling and a fully articulating screen, it is built for serious, long-form video work.
Key Features
- Low-light master: A 12.1MP full-frame sensor with dual base ISO for clean high-sensitivity capture.
- 4K 120p internal: 4K up to 120p 10-bit 4:2:2 recording, with 16-bit raw output over HDMI.
- Wide dynamic range: S-Cinetone, S-Log3 and 15-plus stops of latitude for grading.
- Reliable hybrid AF: Fast, dependable autofocus with Real-time Eye AF.
- Long takes: Active cooling supports extended recording without overheating limits.
- Articulating screen: A fully vari-angle display for run-and-gun and vlogging.
Ideal For
- Documentary, event and wedding videography
- Low-light and available-light shooting
- Gimbal and handheld run-and-gun work
- Multi-camera productions needing a compact body
- Creators recording long, uninterrupted takes
Specifications
- Sensor: 12.1MP full-frame Exmor R CMOS
- Lens mount: Sony E-mount
- Processor: BIONZ XR
- Video: 4K up to 120p 10-bit 4:2:2 internal, 16-bit raw over HDMI
- Dynamic range: 15-plus stops
- ISO: Dual base ISO
- Stabilisation: 5-axis in-body
- Rear screen: Fully articulating vari-angle LCD
- Model code: ILCE-7SM3
Available from Prosales, South Africa's authorised Sony dealer.
| Type | Full-frame mirrorless camera |
| Sensor | 12.1MP full-frame Exmor R CMOS |
| Lens mount | Sony E-mount |
| Processor | BIONZ XR |
| ISO | Dual base ISO |
| Video | 4K up to 120p 10-bit 4:2:2 internal; 16-bit raw over HDMI |
| Colour | S-Cinetone, S-Log3 |
| Dynamic range | 15+ stops |
| Autofocus | Fast hybrid AF with Real-time Eye AF |
| Image stabilisation | 5-axis in-body |
| Rear screen | Fully articulating vari-angle LCD |
| Cooling | Active cooling for long takes |
| Model code | ILCE-7SM3 |
Low-Light Master
A 12.1MP full-frame sensor with dual base ISO delivers exceptionally clean footage where other cameras struggle.
Pro Video Toolkit
4K up to 120p 10-bit internal, 16-bit raw over HDMI and 15+ stops of dynamic range for serious video work.
Built for Long Takes
Active cooling and a fully articulating screen make it ideal for extended recording and run-and-gun shooting.









