Full HD Slow Motion Camera: High Frame Rate, 4K Resolution, and Full-frame Sensor
The first thing you need to know about the a7S is that it can record 1080p footage internally or be used to output 4K video to an external recorder. The internal 1080p footage is recorded using the XAVC S format, a more consumer-friendly version of Sony’s XAVC system. This is the first of the company’s cameras to use the format, which frees the camera from the bitrate restrictions of the AVCHD standard.
- 12MP full-frame EXMOR CMOS sensor
- Focuses at light levels to -4EV
- 1080 footage at up to 50Mbps (XAVC S)
- Extensive movie-focused capture options: S-Log2, Black Level, time code
- Video ISO Range 100 – 409,600
- Uncompressed 4:2:2 Full HD and 4K video output over HDMI
- 2.36M dot OLED viewfinder
- Mic and headphone sockets
- 720/120p option for slow-mo capture
- Wi-Fi with NFC
| Sony a7S: specs, videos, reviews | Buy the Sony a7S
| Sony a7S | Sony a7 II | Sony a7R | |
|---|---|---|---|
| Sensor specifications | 12MP full-frame | 24MP full-frame | 36MP full-frame |
| Video formats | XAVC S, AVCHD, MP4 | XAVC S, AVCHD, MP4 | XAVC S, AVCHD |
| Highest bitrate | 50Mbps (1080p) | 50Mbps (1080p) | 28Mbps (1080p) |
| ISO Range (Stills) Standard / Expanded |
100 – 102,400 50 – 409,600 |
100 – 25,600 50 – 25,600 |
100 – 25,600 50 – 25,600 |
| ISO Range (Movies) | 200 – 102,400 200 – 409,600 |
200 – 25,600 | 200 – 25,600 |
| Image Stabilization | In-lens only | In-body | In-lens only |
| S-Log2 picture profile | Yes | Yes | No |
| Electronic first curtain shutter | Yes | Yes | No |
| Battery life (CIPA) | 360 | 350 | 340 |
| Weight | 489g | 559g | 465g |